<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
 <url>
 <loc>http://curriculumcooperative.org/</loc>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/index.php?name=Home Page</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/course_search_demo.php?name=Start Demo Now</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=for-investors&name=Investors & Beta Testers</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=why-member&name=Why be a member</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=forum-info&name=Forum Information</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=terms-service&name=Terms of Services</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=site-policy&name=Site Policies</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/content.php?info=about-us&name=About us</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/signup.php?name=Registration Form</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/login.php?name=Login Form</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/faq.php?name=Frequently Asked Questions</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/contact.php?name=Contact Information</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>weekly</changefreq>
 <priority>1.0</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=611&name=2-D motion (projectile, circular motion) unit test of knowledge transfer</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=325&name=2-D motion - multiple choice unit test </loc>
 <lastmod>2010-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=326&name=2-D motion - open response unit test</loc>
 <lastmod>2010-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=289&name=A 2-D collision that flies through the air - lab</loc>
 <lastmod>2010-07-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=55&name=A chocolate controlled experiment - quiz</loc>
 <lastmod>2009-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=333&name=A difficult list -Is it a thing, substance, process or property?</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=635&name=A first wind farm for Connecticut - read & respond</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=641&name=A joke to begin a design task</loc>
 <lastmod>2011-06-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=801&name=A rainbow of colors with acids/bases - demonstration</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=321&name=A simulation of the water cycle</loc>
 <lastmod>2010-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=158&name=A starter list: Is it an entity, property, or process?</loc>
 <lastmod>2012-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=471&name=A step-by-step introductory problem to Work</loc>
 <lastmod>2010-10-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=433&name=A switched simple circuit as an introduction to energy map switches</loc>
 <lastmod>2011-11-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=685&name=A tennis racquet that doesn't lose energy??  Read and respond</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=415&name=Acid rain comprehension test</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=329&name=Acid rain review questions - short answer</loc>
 <lastmod>2010-08-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=434&name=Activities:  What energy transformations does friction produce?</loc>
 <lastmod>2011-01-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=487&name=Adding forces with hanging objects & cranes - lab</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=40&name=Algebraic introduction to kinetic and position (grav. potential) energies</loc>
 <lastmod>2010-09-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=687&name=Algebraic problem solving rubric/checklist</loc>
 <lastmod>2012-02-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=476&name=Amplifiers, microphones, speakers - The energy transformations</loc>
 <lastmod>2010-10-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=672&name=An endothermic reaction to demonstrate Gibb's free energy</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=584&name=An essay: The symbolism of weight and mass having upside down symbols</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=790&name=An introductory conversation on alternative energies</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=330&name=Analysis of a tethered toy airplane - lab </loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=665&name=Analyze 20 familiar processes.</loc>
 <lastmod>2011-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=477&name=Analyze and map your own process - a project</loc>
 <lastmod>2011-12-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=647&name=Analyze and model cell reproduction and death</loc>
 <lastmod>2011-07-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=668&name=Analyze many different correlations</loc>
 <lastmod>2011-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=197&name=Analyze processes from the Earth Sciences</loc>
 <lastmod>2012-04-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=196&name=Analyze some simple processes</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=548&name=Analyze the forces in a situation of your choice using a scale diagram</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=525&name=Analyze the temp graphs of slow cookers - 15 min quiz</loc>
 <lastmod>2011-02-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=229&name=Analyze the types of tectonic boundaries</loc>
 <lastmod>2012-04-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=303&name=Analyzing diverging tectonic boundaries</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=331&name=Analyzing diverging tectonic boundaries</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=466&name=Analyzing energy flow at the bulk and particulate scales</loc>
 <lastmod>2010-10-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=208&name=Analyzing NASA data for the onset of El Nino</loc>
 <lastmod>2010-02-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=467&name=Analyzing the energy flows of a hot ingot on a wood table</loc>
 <lastmod>2010-10-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=632&name=Analyzing wind data - A Webquest</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=620&name=AP physics equation tables (Motion, Waves, Elec & magnetism)</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=63&name=Are there too many/few students in your school building?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=514&name=Are they insulators or conductors - inquiry investigation</loc>
 <lastmod>2011-01-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=142&name=Assessment of prior knowledge: What is Energy?</loc>
 <lastmod>2010-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=729&name=At what height do cats prefer their drinking water?</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=266&name=Atoms to moles to grams, and back - wksht</loc>
 <lastmod>2010-06-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=72&name=Bacterial growth and antiseptic techniques - lab</loc>
 <lastmod>2009-12-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=24&name=Balancing chemical equations - Quiz #1</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=721&name=Batteries to store large-scale wind power - read & respond</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=521&name=Boil water in a paper cup!</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=267&name=Boiling water at room temp easily</loc>
 <lastmod>2010-06-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=437&name=Bouncing ball energy transformations mapping</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=90&name=Bows and arrows and strings and rubber bands</loc>
 <lastmod>2009-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=139&name=Bridges or tunnels to cross fjords or mountains?</loc>
 <lastmod>2010-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=495&name=Build a bridge from pasta and then test it</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=431&name=Build a wind generator from a DC motor and everyday materials</loc>
 <lastmod>2011-06-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=793&name=Building a resonance board for the deaf</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=479&name=Building complex energy mappings - problems</loc>
 <lastmod>2010-10-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=797&name=Calculate Earth's mass from the moon's orbit.</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=138&name=Calculate the efficiency of LED lightbulbs</loc>
 <lastmod>2010-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=391&name=Calculating cost and mileage ratios for different cars</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=265&name=Calculating with gas densities at STP</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=643&name=Can cats live on rats that live on cats? </loc>
 <lastmod>2011-07-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=78&name=Can evolution run in reverse? Research says No</loc>
 <lastmod>2009-12-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=70&name=Can you burn paper with a hand lens?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=250&name=Can you find how thick the aluminum foil is?</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=20&name=Can you identify the entities and properties in these questions?</loc>
 <lastmod>2012-02-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=98&name=Can you identify the process of heat transfer? A PPP quiz</loc>
 <lastmod>2009-12-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=369&name=Can you identify the things and properties in these questions?</loc>
 <lastmod>2010-08-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=243&name=Can you spot the confusion between power and energy?</loc>
 <lastmod>2011-03-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=94&name=Can you stick a skewer thru an inflated balloon?</loc>
 <lastmod>2009-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=505&name=Can you use friction to find its balance point?</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=394&name=Carrying out a serial dilution</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=222&name=Cartoon analysis for process, entity, property.</loc>
 <lastmod>2010-02-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=879&name=Categorize motions as 2-D </loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=642&name=Categorize organisms to derive the kingdoms of life</loc>
 <lastmod>2011-07-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=124&name=Categorize questions according to topic & the six basic physical concepts</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=123&name=Categorize questions according to topic and 12 science concepts</loc>
 <lastmod>2010-01-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=606&name=Categorizing energy resources multiple ways</loc>
 <lastmod>2012-04-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=937&name=cbsgs</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=174&name=Change the subject of the equation - practice worksheet</loc>
 <lastmod>2010-01-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=885&name=Chart (blank) for analyzing any process</loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=148&name=Chart and summarize the definitions of the most common properties</loc>
 <lastmod>2010-01-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=675&name=Charts of unit conversions, thermal properties, gravity, universal constants</loc>
 <lastmod>2011-09-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=674&name=Charts: Heat of combustion, specifc/fusion/vaporization heats </loc>
 <lastmod>2011-09-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=655&name=Checklist for the proper format of a lab report</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=623&name=Chemical disposal safety instructions</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=157&name=Chemistry reference tables for NY Regents exam</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=612&name=Choosing location and energy technologies for a zero-energy homesite</loc>
 <lastmod>2011-05-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=339&name=Circular motion problem set</loc>
 <lastmod>2011-04-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=615&name=Citrus battery activity</loc>
 <lastmod>2011-04-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=944&name=Class observations of a wind tower being erected</loc>
 <lastmod>2012-04-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=386&name=Classic "Shoot the dropping monkey" problem</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=182&name=Climbing stairs and a hill - What's your power and efficiency?</loc>
 <lastmod>2011-12-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=756&name=Coastal processes and conflicts: N. Carolina's Outer Banks - Unit materials</loc>
 <lastmod>2012-01-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=198&name=Colliding putty balls - 10 min quiz</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=268&name=Compare the densities of two boxes - demonstration</loc>
 <lastmod>2010-06-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=543&name=Compare the directions and rates of the 4 methods of heat transfer</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=54&name=Compare the new and old specifications for the America's Cup boats</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=531&name=Compare the uniformities of different things - wksht</loc>
 <lastmod>2011-01-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=494&name=Compare the uniformities of different things - wksht</loc>
 <lastmod>2011-01-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=59&name=Comparing and analyzing the speeds of mammals</loc>
 <lastmod>2009-10-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=352&name=Comparing diagrams of the electromagnetic spectrum</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=112&name=Comparing the chemical energy of soda and an energy drink</loc>
 <lastmod>2010-01-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=768&name=Comparing the conductivities of 5 metals - lab</loc>
 <lastmod>2012-03-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=646&name=Comparing the cost of redi-mix and DIY mortar</loc>
 <lastmod>2011-07-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=745&name=Comparing the properties of a genuine and fake statue</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=540&name=Comparing the rates of conduction and convection - inquiry activity</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=542&name=Comparing the times for polygon and trig solutions</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=679&name=Computer simulation - Scale of an atom</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=839&name=Computer simulations of Universal Gravitation and the tides</loc>
 <lastmod>2012-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=453&name=Connecting patterns at the bullk and molecular scales for phase</loc>
 <lastmod>2010-09-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=341&name=Conservation could cut Greenhouse gases 28%</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=186&name=Conservation of energy problems, equations not needed.</loc>
 <lastmod>2011-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=342&name=Conservation of momentum lab w/ dynamics carts</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=461&name=Conserving energy algebraically - Problems</loc>
 <lastmod>2011-11-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=684&name=Conserving energy in a (car) engine</loc>
 <lastmod>2012-02-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=458&name=Conserving energy in some simple maps</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=732&name=Conserving energy in the sun's effect on the Earth</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=190&name=Conserving the ups and downs - quiz</loc>
 <lastmod>2011-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=757&name=Constructing single-body diagrams - wksht series</loc>
 <lastmod>2011-12-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=169&name=Convection series of labs</loc>
 <lastmod>2010-01-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=188&name=Converting among metric units - worksheet</loc>
 <lastmod>2010-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=134&name=Converting complex units - worksheet</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=195&name=Converting units and re-arranging equations - 15 min quiz</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=144&name=Cooperative learning member tasks & spinner</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=744&name=Correlating lung capacity with other variables - an investigation</loc>
 <lastmod>2011-12-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=592&name=Corroded set of weights - Now what?</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=217&name=Costs and benefits of secondary source research to answer questions</loc>
 <lastmod>2010-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=31&name=Could air be matter - inquiry investigation</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=214&name=Coulomb's Law - Introductory problems</loc>
 <lastmod>2012-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=275&name=Counting kernels, needles, leaves, sand grains</loc>
 <lastmod>2010-07-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=34&name=Create an adopt-a-mammal manual</loc>
 <lastmod>2011-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=324&name=Create your own multi-faceted mechanics problem</loc>
 <lastmod>2010-08-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=128&name=Crossword puzzle: Photovoltaics</loc>
 <lastmod>2010-01-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=711&name=Dark energy - The 2011 Nobel Prize in physics</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=596&name=Dart guns resolve the difference between mass and weight - demonstration</loc>
 <lastmod>2011-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=644&name=Demonstrate cell membrane diffusion</loc>
 <lastmod>2011-07-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=683&name=Derive energy conservation equations from energy maps</loc>
 <lastmod>2011-09-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=438&name=Derive the forms of energy from everyday experience</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=427&name=Describe 14 properties of common objects</loc>
 <lastmod>2012-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=67&name=Describe changes in heated & cooled balloons </loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=455&name=Describe the forces in real-world situations</loc>
 <lastmod>2011-12-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=590&name=Describe the processes of a burning candle</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=343&name=Describe your strategy for solving mechanics problems</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=248&name=Design a balloon powered car</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=336&name=Design a catapult</loc>
 <lastmod>2012-04-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=630&name=Design a musical instrument</loc>
 <lastmod>2011-07-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=249&name=Design a rubber-band powered cargo boat</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=532&name=Design a zoo habitat for a polar animal.</loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=627&name=Design your own solar passive house - extended project</loc>
 <lastmod>2011-07-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=593&name=Design, build and test an accelerometer</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=733&name=Design, build, test and analyze a prosthetic limb</loc>
 <lastmod>2011-11-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=183&name=Detailed energy mapping of 14 processes</loc>
 <lastmod>2010-10-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=439&name=Diagramming everyday energy switches - wksht</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=345&name=Diagramming the carbon cycle</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=346&name=Diagramming the nitrogen cycle</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=715&name=Diagramming the three sources of energy to Earth's surface</loc>
 <lastmod>2012-03-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=314&name=Diagramming, charting and analyzing the water cycle</loc>
 <lastmod>2010-08-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=763&name=Difference between active and passive solar systems - 10 min quiz</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=81&name=Dissolving Alka-Seltzer depends on temperature and particle size</loc>
 <lastmod>2009-12-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=269&name=Do students with more siblings get better grades?</loc>
 <lastmod>2010-06-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=47&name=Does air washing bed sheets really work?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=10&name=Does it have energy - 5 min quiz</loc>
 <lastmod>2010-07-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=452&name=Does the fine-structure constant vary over the universe?</loc>
 <lastmod>2010-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=385&name=Dominoes with the Greenhouse Effect sequence</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=348&name=Doubts give way to certainty on climate change</loc>
 <lastmod>2010-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=636&name=Draw and describe the Endurance wind turbine</loc>
 <lastmod>2011-06-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=353&name=Draw the elec and mag fields in an electromagnetic wave</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=412&name=Drawing a scale diagram of the atom on a map</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=71&name=Drawing analogies for elements, compounds, mixtures</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=454&name=Dribbling or paddle ball - Which ball gets hotter?</loc>
 <lastmod>2010-09-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=792&name=Drilling team finally reaches Antarctic under-ice lake</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=599&name=Dropping bombs and skydivers drop how ???</loc>
 <lastmod>2011-03-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=709&name=Drugs are based on molecular switches like key-and-lock - Quiz & Extended research</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=156&name=Earth Science reference tables for NY Regents exam</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=69&name=Effect of animal camouflage, using carpet and beans</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=480&name=Efficiency of the human body - a class report</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=132&name=Efficiency problems, from simple to complex</loc>
 <lastmod>2011-10-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=699&name=Eight forms of energy - summary & review chart</loc>
 <lastmod>2011-10-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=626&name=Einstein's relativity theory verified - essay on report</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=692&name=Elastic energy introductory problems</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=609&name=Electric power in the home - introductory practice</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=746&name=Element symbols - Memorize and quiz, then research an element</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=301&name=END OF LESSON LIST</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=310&name=END OF LESSON LIST 10</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=311&name=END OF LESSON LIST 11</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=302&name=END OF LESSON LIST 2</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=304&name=END OF LESSON LIST 4</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=305&name=END OF LESSON LIST 5</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=307&name=END OF LESSON LIST 7</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=308&name=END OF LESSON LIST 8</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=309&name=END OF LESSON LIST 9</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=5&name=Energy conversion dominoes game</loc>
 <lastmod>2010-07-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=11&name=Energy forms and simple transformations - quiz</loc>
 <lastmod>2011-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=6&name=Energy inputs and outputs to important processes</loc>
 <lastmod>2012-02-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=171&name=Energy mapping generic rubric</loc>
 <lastmod>2011-07-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=295&name=Energy mapping some outdoor events</loc>
 <lastmod>2010-07-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=356&name=Energy resources and uses on the new Lunar station</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=36&name=Energy resources overview: research project</loc>
 <lastmod>2012-04-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=472&name=Energy switches - quiz</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=12&name=Energy unit conversions chart</loc>
 <lastmod>2011-10-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=463&name=Engines, motors, generators, turbines: What are the energy transformations?</loc>
 <lastmod>2010-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=228&name=Entropy and the rubber band</loc>
 <lastmod>2011-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=261&name=EPA sets new limits on SO2</loc>
 <lastmod>2010-06-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=614&name=Estimating monthly kWh useage - hands-on activity and worksheets</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=52&name=Everything is always in motion - essay</loc>
 <lastmod>2009-09-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=446&name=Examining the climate conundrum of missing CO2</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=65&name=Exercises in diagramming complex webs of energy transformations</loc>
 <lastmod>2011-10-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=110&name=Exothermic reaction of rusting iron - lab</loc>
 <lastmod>2010-01-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=447&name=Explaining the equations for the eight forms of energy</loc>
 <lastmod>2011-09-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=77&name=Exploring chemical reactions - introductory lab</loc>
 <lastmod>2009-12-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=867&name=Exploring concentration with your senses</loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=770&name=Exploring how bearings reduce friction</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=552&name=Extrapolate global temperatures to 2060 and compare projections</loc>
 <lastmod>2011-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=519&name=Finding camouflaged butterflies in the classroom - activity</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=482&name=Finding camouflaged butterflies in the classroom - activity</loc>
 <lastmod>2011-01-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=492&name=Finding components in simple diagrams - 10 min quiz</loc>
 <lastmod>2012-04-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=493&name=Finding force vector components by diagram and trigonometry - worksheet</loc>
 <lastmod>2010-11-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=555&name=Finding forces and a resultant in an advertisement</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=496&name=Finding forces and angles with hanging pictures</loc>
 <lastmod>2012-01-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=541&name=Finding resultants from multiple forces - wksht</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=859&name=Finding your location using the sun - text and activity</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=359&name=Flash card activity for air quality terms</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=73&name=Force and resultant problems in some real-world situations</loc>
 <lastmod>2011-12-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=743&name=Force the car uphill - alone!</loc>
 <lastmod>2011-12-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=89&name=Forces and resultant forces - comprehension unit test</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=568&name=Forces on a sled - problems that include Work</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=691&name=Four interesting problems conserving energy</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=508&name=Friction problems worksheet</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=177&name=Fuel cell car investigation of energy resources and transformations</loc>
 <lastmod>2011-03-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=178&name=Garfield and the spider - an energy mapping</loc>
 <lastmod>2010-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=650&name=Generic template for students answering a concept-based question</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=860&name=Geographical maps and mapping - packet of materials & activities</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=527&name=Graph paper templates for Word </loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=131&name=Graphic design of energy form names to represent their definitions</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=365&name=Graphic of the greenhouse effect</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=524&name=Graphical analysis of motion - series of 10 worksheets</loc>
 <lastmod>2012-02-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=577&name=Graphical analysis of motion - series of 7 quizzes</loc>
 <lastmod>2011-02-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=579&name=Graphical analysis of motion - test for transfer</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=370&name=Greenhouse Effect - complete 3-4 week unit</loc>
 <lastmod>2010-08-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=364&name=Greenhouse Effect - comprehension test</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=680&name=Groupings and alternate names for energy forms</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=667&name=Heat transfer overview - application questions</loc>
 <lastmod>2011-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=332&name=How are conservation of momentum and energy linked - Quiz</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=625&name=How are wave frequency, wavelength and speed related?</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=484&name=How can a human catch a cheetah? </loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=263&name=How can steel wool burn? Demo and explain</loc>
 <lastmod>2010-06-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=513&name=How can two switches operate one buzzer?</loc>
 <lastmod>2011-01-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=775&name=How did they compare old and new violins for sound quality? </loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=523&name=How do dimensions change on a telescoping radio antenna?</loc>
 <lastmod>2011-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=622&name=How do pulleys change applied forces? Hands-on demo</loc>
 <lastmod>2011-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=515&name=How does a flashlight work?</loc>
 <lastmod>2011-01-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=49&name=How does a home pool alarm work?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=97&name=How does convection occur - 10 min quiz</loc>
 <lastmod>2009-12-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=189&name=How does it change when its energy changes?</loc>
 <lastmod>2011-09-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=151&name=How does the bobbing bird work?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=556&name=How does the height an object floats above a liquid depend on their densities? - lab</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=654&name=How does this chain letter appeal to you?</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=794&name=How does your ponytail hang? What's involved?</loc>
 <lastmod>2012-02-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=136&name=How efficient is transport by Erie Canal barge?</loc>
 <lastmod>2010-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=755&name=How emission and absorption spectra are formed - resource</loc>
 <lastmod>2012-02-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=367&name=How far will the projectile roll - A guided problem solution</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=270&name=How high will it bounce - Scaffolded experiment</loc>
 <lastmod>2010-06-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=649&name=How long could you surf behind a boat?</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=712&name=How much do you believe research that asteroids pose less risk to Earth?</loc>
 <lastmod>2011-10-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=469&name=How much does a hurricane weigh? </loc>
 <lastmod>2010-10-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=57&name=How much electricity do you get back from a chem cell?</loc>
 <lastmod>2009-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=35&name=How much water is in the rain?</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=117&name=How to discover which of the eight balls is lighter?</loc>
 <lastmod>2010-01-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=533&name=How uniform is the geophysical entity? Research & report</loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=530&name=How well does it describe the thing's uniformity?</loc>
 <lastmod>2011-01-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=209&name=Hurricanes as heat engines - NASA webquest</loc>
 <lastmod>2010-02-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=99&name=Identify the forces on a flying airplane - wksht-quiz</loc>
 <lastmod>2009-12-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=160&name=Identify the property associated with 25 different values</loc>
 <lastmod>2010-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=368&name=Identify the tectonic plates and diverging boundaries</loc>
 <lastmod>2010-08-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=764&name=Identify the type of radiation in each nuclear reaction</loc>
 <lastmod>2012-01-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=681&name=Incandescent light bulbs - Science and technology</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=313&name=Interpret a graphic of the Greenhouse Effect</loc>
 <lastmod>2010-08-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=534&name=Introduction to acids and bases</loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=107&name=Introduction to chemical reactions - unit test</loc>
 <lastmod>2009-12-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=604&name=Introduction to circular motiion - Series of 3 worksheets</loc>
 <lastmod>2011-03-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=462&name=Introduction to composition - quiz</loc>
 <lastmod>2010-09-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=578&name=Introduction to constant accelerated motion - quiz</loc>
 <lastmod>2011-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=322&name=Introduction to cycles using clothes washing example</loc>
 <lastmod>2010-08-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=351&name=Introduction to electrostatics with an electroscope</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=432&name=Introduction to Energy - let's try to define it</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=425&name=Introduction to ethanol as a fuel</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=565&name=Introduction to finding force components on a hill</loc>
 <lastmod>2012-01-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=92&name=Introduction to finding non-zero resultants</loc>
 <lastmod>2010-12-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=372&name=Introduction to momentum - a series of 3 worksheets</loc>
 <lastmod>2011-04-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=737&name=Introduction to Newton's 2nd Law - Powerpoint</loc>
 <lastmod>2012-02-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=570&name=Introduction to problem solving with single-body diagrams</loc>
 <lastmod>2012-01-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=58&name=Introduction to science as the art of asking and answering questions</loc>
 <lastmod>2009-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=512&name=Introduction to series and parallel circuits - inquiry hands-on</loc>
 <lastmod>2011-01-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=306&name=Introduction to the carbon cycle - a game</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=334&name=Introduction to the carbon cycle - a game</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=510&name=Introduction to the electric switch</loc>
 <lastmod>2011-01-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=350&name=Introduction to the electromagnetic spectrum - quiz</loc>
 <lastmod>2010-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=677&name=Introduction to the energy forms around us - lab</loc>
 <lastmod>2011-09-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=576&name=Introduction to the ticker-tape recorder - an activity</loc>
 <lastmod>2011-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=435&name=Introductory algebraic problem solving with the energy forms</loc>
 <lastmod>2011-09-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=419&name=Introductory demonstration for the carbon cycle</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=373&name=Introductory experiences with circular motion</loc>
 <lastmod>2010-08-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=571&name=Introductory hook for density - which ball weighs more?</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=659&name=Introductory problems in computing chemical energies</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=653&name=Introductory problems in computing thermal energies</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=597&name=Introductory problems in dynamics</loc>
 <lastmod>2011-03-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=470&name=Introductory Work activities in round-robin stations</loc>
 <lastmod>2011-10-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=251&name=Investigate the changing density of pennies</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=723&name=Investigating (kinetic) friction with Work and a ramp</loc>
 <lastmod>2012-01-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=374&name=Investigating combustion pollutants with candles</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=914&name=Investigating earthquake damage with a simulation</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=550&name=Investigating friction forces and coefficients</loc>
 <lastmod>2011-01-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=210&name=Investigating seasonal variability in NO2 concentration</loc>
 <lastmod>2010-02-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=299&name=Investigating Seasonal Variability in NO2 Concentrations</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=327&name=Investigating the effect of acid rain on various rocks</loc>
 <lastmod>2012-03-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=257&name=Investigating the ratio of snow to water</loc>
 <lastmod>2010-02-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=215&name=Investigating the relationship between magnetism and electricity</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=553&name=Investigating the solubility of CO2 in soda pop</loc>
 <lastmod>2011-01-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=726&name=Investigating the thermoelectric effect</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=26&name=Ionic bonding from beginning to end - series of 6 worksheets</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=21&name=Is it a thing, property, or process?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=686&name=Is it scientific? "Titanium necklace boosts energy levels!"</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=42&name=Is kinetic energy really proportional to the square of v - lab</loc>
 <lastmod>2009-09-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=375&name=Is momentum conserved during these 46 interactions?</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=46&name=Is something there if you can't see it?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=912&name=Job openings and unemployment- Correlation or causality?</loc>
 <lastmod>2012-04-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=601&name=Kinematics and dynamics unit test - long response</loc>
 <lastmod>2012-04-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=600&name=Kinematics and dynamics unit test - multiple choice</loc>
 <lastmod>2012-03-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=591&name=Kinematics problems: A range, from introductory to complex.</loc>
 <lastmod>2011-02-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=338&name=Lab - Derive the equations for circular motion </loc>
 <lastmod>2011-03-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=688&name=Lab safety contracts</loc>
 <lastmod>2011-09-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=661&name=Maintaining classroom discipline - increasingly severe strategies</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=161&name=Make a colorful page for the four ideas that comprise Property</loc>
 <lastmod>2011-03-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=288&name=Making and testing a pinwheel wind device</loc>
 <lastmod>2010-07-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=56&name=Making and testing a pinwheel wind device</loc>
 <lastmod>2009-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=271&name=Making sense of an equation for body area </loc>
 <lastmod>2010-06-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=689&name=Making soap from beef fat - a series of activities</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=104&name=Map the energy in your own choice of process - unit assessment</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=771&name=Map the hissing iron</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=693&name=Mapping a pogo stick's energy transformations from a written description</loc>
 <lastmod>2011-10-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=459&name=Mapping some everyday events with Conservation of Energy</loc>
 <lastmod>2010-09-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=262&name=Mapping the energy transformations of a black hole</loc>
 <lastmod>2010-06-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=678&name=Mapping the flow of energy through organisms & a food chain</loc>
 <lastmod>2011-11-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=430&name=Matching a renewable energy resource with its context and uses</loc>
 <lastmod>2011-03-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=613&name=Matching energy resources and uses in your town</loc>
 <lastmod>2011-06-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=628&name=Measure the speed of sound using resonance</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=283&name=Measuring a spring constant - lab</loc>
 <lastmod>2011-09-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=62&name=Measuring the buoyant force with an egg</loc>
 <lastmod>2009-10-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=126&name=Measuring the efficiencies of different types of light bulbs - lab</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=583&name=Mechanics of car airbags in the first 2 seconds</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=25&name=Modeling a chemical reaction with the whole class</loc>
 <lastmod>2010-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=79&name=Modeling combustion with molecule kits - lab</loc>
 <lastmod>2009-12-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=861&name=Modeling the Earth's tectonic plates with a tennis ball</loc>
 <lastmod>2012-04-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=300&name=Modify a fan to become a wind generator</loc>
 <lastmod>2010-10-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=256&name=Molecular density from the atomic and bulk scales</loc>
 <lastmod>2010-02-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=220&name=Molecular patterns of motion (phase) drawing activity</loc>
 <lastmod>2010-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=624&name=Momentum unit test - x'ple choice, short answer, long response</loc>
 <lastmod>2011-06-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=616&name=Momentum-impulse and conservation of momentum - problems</loc>
 <lastmod>2011-05-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=381&name=NASA lessons using weather satellite data - list</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=68&name=Net meshes and their effects on aquatic wildlife</loc>
 <lastmod>2009-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=223&name=Newspaper clippings preserved - inquiry investigation</loc>
 <lastmod>2010-02-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=617&name=Newton's cradle: Investigating a toy with conservation  of momentum and energy</loc>
 <lastmod>2011-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=586&name=Nuclear energy problem set.</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=211&name=Ocean motion and surface currents - Unit materials from NASA</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=769&name=Ohm's law lab with an engineering focus</loc>
 <lastmod>2012-01-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=595&name=Oil and gas career board game</loc>
 <lastmod>2011-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=694&name=Open-ended questions and problems in energy transformation</loc>
 <lastmod>2011-10-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=749&name=Orientations of the planets - illustrated diagrams</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=64&name=Percentages with puzzle pieces</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=516&name=Perfecting animation, via science</loc>
 <lastmod>2011-01-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=225&name=Phase - Unit comprehension test</loc>
 <lastmod>2010-02-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=224&name=Phase: Student performance objectives</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=669&name=Physics honors level final exam (Mechanics, Waves, Circuits) x'ple choice</loc>
 <lastmod>2011-07-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=185&name=Plug-in car's are almost here, missing the charging stations</loc>
 <lastmod>2010-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=113&name=Popcorn vs. crackers properties - quiz</loc>
 <lastmod>2010-01-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=862&name=Porosity and density of sand and marbles - activity</loc>
 <lastmod>2012-03-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=383&name=Porosity, mass and density explained with Swiss cheese</loc>
 <lastmod>2012-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=456&name=Poster presentation on Energy transformation</loc>
 <lastmod>2010-10-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=384&name=Power problem set</loc>
 <lastmod>2011-12-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=539&name=PowerPoint introduction or review of energy transformation</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=411&name=PowerPoint slides illustrating many different properties</loc>
 <lastmod>2010-08-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=337&name=Practice applying the concept of change</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=264&name=Practice constructing line and bar graphs</loc>
 <lastmod>2011-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=105&name=Practice finding resultants w/ polygons and trig</loc>
 <lastmod>2010-11-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=278&name=Practice with compass directions</loc>
 <lastmod>2010-07-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=317&name=Practice with value changes during a process</loc>
 <lastmod>2012-04-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=742&name=Practicing with cause and effect.</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=598&name=Problems in linear dynamics</loc>
 <lastmod>2011-04-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=292&name=Projectile motion practice problems</loc>
 <lastmod>2011-03-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=147&name=Properties of the Earth's layers - a poster project</loc>
 <lastmod>2012-03-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=499&name=Protractor template to photocopy</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=491&name=Pushing a car around to find the resultant - A class activity</loc>
 <lastmod>2011-12-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=585&name=Quick sketching and deriving of motion graphs - activity</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=141&name=Quiz - What is a formal definition of energy</loc>
 <lastmod>2010-07-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=259&name=Quiz - What's the dimensional punch line</loc>
 <lastmod>2010-03-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=773&name=Quiz series on adding forces with zero resultant</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=460&name=Quiz: Introduction to conservation of energy</loc>
 <lastmod>2010-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=608&name=Quiz: What does the hockey puck do?</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=716&name=Quiz: Work problem on a ramp</loc>
 <lastmod>2011-10-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=798&name=Quizzes - Problems with electric charges and gravity</loc>
 <lastmod>2012-03-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=780&name=Radio broadcast applying F=ma to football running back</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=498&name=Rates and ratios - Can you tell the difference?</loc>
 <lastmod>2010-12-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=154&name=Relating density, porosity, and mass in five contexts.</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=18&name=Relating the terms property and variable</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=37&name=Renewable energy resources research project - in depth</loc>
 <lastmod>2011-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=184&name=Research & PowerPoint on a renewable energy resource</loc>
 <lastmod>2011-03-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=741&name=Research power outputs to fit into a scale of examples</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=841&name=Research the compositions of Earth, oceans, atmosphere, and Sun.</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=714&name=Review for unit test on energy forms and transformations</loc>
 <lastmod>2011-10-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=155&name=Review in coop groups - What did I learn?</loc>
 <lastmod>2010-01-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=167&name=Review of energy resources, including fossil fuels and nuclear</loc>
 <lastmod>2011-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=774&name=Review problems and activity for Work, Efficiency, & Power</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=736&name=Review questions for a study guide: Phase and Structure</loc>
 <lastmod>2012-01-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=227&name=Review questions for unit: Phase and Structure</loc>
 <lastmod>2010-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=393&name=Review: Sea floor spreading, volcanoes, earthquakes, trenches</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=631&name=Review: What are waves, their properties and their processes</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=803&name=Review: What is the property concept?</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=936&name=rnrg</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=389&name=Sea floor spreading review questions</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=392&name=Seafloor spreading - test</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=517&name=Sending Morse code messages with a simple circuit</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=363&name=Sequence of events in the Greenhouse Effect</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=468&name=Sergeant Snorkle's energy transformations</loc>
 <lastmod>2010-10-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=149&name=Series of quizzes for 13-18 specific properties</loc>
 <lastmod>2011-07-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=605&name=Series of quizzes on projectile motion</loc>
 <lastmod>2011-03-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=580&name=Series of single problem quizzes for kinematics</loc>
 <lastmod>2012-03-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=695&name=Shooting a hand gun - map the transformations</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=387&name=Simple projectile motion lab</loc>
 <lastmod>2012-04-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=748&name=Simulating aquifers at the beginning of the computer age</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=273&name=Simulating Brownian motion in solids, liquids, gases</loc>
 <lastmod>2010-07-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=566&name=Simulation of the otter population</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=781&name=Singing the lowest note ever- NPR broadcast</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=358&name=Slide or fall - Is it all the same?</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=475&name=Smart paper bends with voltage - map transformations</loc>
 <lastmod>2010-10-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=747&name=Solar cookers:  research, design, build and test for a controlled experiment</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=943&name=Solar thermal power plants are back - Read & respond</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=397&name=Some interesting problems in 2-Dimensions</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=549&name=Some questions on what the resultant force is</loc>
 <lastmod>2011-01-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=696&name=Sorting out the energy forms of different types of motion</loc>
 <lastmod>2011-10-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=559&name=Sorting out the steps to different ways of adding forces</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=312&name=Spreading the word about global climate change</loc>
 <lastmod>2010-07-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=882&name=Step-by-step introductory problem for projectile  motion</loc>
 <lastmod>2012-03-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=850&name=Student ballot for level of group participation</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=164&name=Student research and presentation on a property</loc>
 <lastmod>2010-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=315&name=Study guide - Energy transformation introduction</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=316&name=Study guide - Work and Power, including Efficiency.</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=371&name=Study questions for the video An Inconvenient Truth</loc>
 <lastmod>2010-08-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=940&name=Submit process for S.S.</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=17&name=Summarize the definitions of the most common 18 properties</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=398&name=Summary and uses for seven Motion & Forces concepts</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=637&name=Superpose two waves - a quiz</loc>
 <lastmod>2011-06-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=629&name=Superposition and resonance - quiz</loc>
 <lastmod>2011-09-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=413&name=Surface area to volume ratios in Biology (the cell)</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=789&name=Surface tension demonstration</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=935&name=Survey your school on attitudes to climate change</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=152&name=Tables of properties - hand-outs, posters, ...</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=719&name=Teenage IQ changes with rigorous academics</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=503&name=Tensions in a net - Scaled force diagram activity</loc>
 <lastmod>2010-12-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=700&name=Test - Energy forms & transformations (SPED)</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=362&name=Test - Graphical analysis of motion</loc>
 <lastmod>2010-08-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=890&name=Test 21</loc>
 <lastmod>2012-04-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=891&name=Test 22</loc>
 <lastmod>2012-04-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=892&name=Test 23</loc>
 <lastmod>2012-04-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=903&name=test 25</loc>
 <lastmod>2012-05-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=904&name=test 27</loc>
 <lastmod>2012-04-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=905&name=test 28</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=908&name=test 29</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=945&name=Test 31</loc>
 <lastmod>2012-05-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=922&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=923&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=924&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=925&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=926&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=927&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=928&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=929&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=930&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=931&name=Test 32</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=932&name=Test 33</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=933&name=Test 34</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=934&name=Test 34</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=938&name=test 35</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=939&name=test 36</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=946&name=test 36</loc>
 <lastmod>2012-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=941&name=test 37</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=942&name=test 37</loc>
 <lastmod>2012-04-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=947&name=test 37</loc>
 <lastmod>2012-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=949&name=test 38</loc>
 <lastmod>2012-05-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=950&name=test 39</loc>
 <lastmod>2012-05-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=907&name=Test 4-15-12</loc>
 <lastmod>2012-04-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=948&name=Test 5-3-12</loc>
 <lastmod>2012-05-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=915&name=Test on 4/18</loc>
 <lastmod>2012-04-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=911&name=Test on tax day #2 </loc>
 <lastmod>2012-04-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=607&name=Tethered airplane toy investigation of circular motion</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=19&name=Text material  - Language of science</loc>
 <lastmod>2011-10-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=416&name=Text material - Acid rain formation and effects</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=417&name=Text material - Air pollution from combustion</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=23&name=Text material - Chemical reactions</loc>
 <lastmod>2011-10-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=9&name=Text material - Energy and energy transformations</loc>
 <lastmod>2011-10-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=22&name=Text material - What is a process or change?</loc>
 <lastmod>2012-03-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=418&name=Text material:  The property of Concentration</loc>
 <lastmod>2012-03-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=226&name=Text notes on Change/Process</loc>
 <lastmod>2010-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=361&name=Text Notes:  Constructing force diagrams</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=277&name=Text notes:  Location, Direction and Map Scales</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=409&name=Text Notes:  Momentum and Conservation of momentum</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=526&name=Text Notes:  Representing data with graphs</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=276&name=Text notes:  The concept of Number</loc>
 <lastmod>2010-07-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=529&name=Text Notes:  Uniformity</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=318&name=Text Notes:  Universal Gravitation</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=874&name=Text Notes:  What is air pollution?</loc>
 <lastmod>2012-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=274&name=Text notes:  What is an entity? </loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=581&name=Text Notes: Acceleration and Newton's 2nd Law</loc>
 <lastmod>2012-02-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=323&name=Text Notes: Introduction to Cycles.</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=319&name=Text Notes: Introduction to vector analysis</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=282&name=Text notes: Texture</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=109&name=Text:  Chemical and Thermal Energy for High School chemistry</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=868&name=Text:  Energy Resources and Uses</loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=80&name=Text:  Introduction to chemical bonding</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=127&name=Text:  Power</loc>
 <lastmod>2011-12-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=135&name=Text:  The Concept of Efficiency</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=125&name=Text:  The divisions and fields of science</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=547&name=Text:  The Force of Friction</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=473&name=Text:  Work and energy flow</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=880&name=Text: Analyzing 2-D motions (projectile, circular, harmonic)</loc>
 <lastmod>2012-04-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=165&name=Text: Composition</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=143&name=Text: Conservation of energy</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=133&name=Text: Converting units (by substitution)</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=146&name=Text: Correlation</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=180&name=Text: Forces and Resultant (Net) Force</loc>
 <lastmod>2011-12-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=652&name=Text: Introduction to thermal and chemical energy</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=221&name=Text: Phase and Structure</loc>
 <lastmod>2011-11-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=145&name=Text: Properties and measurement</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=166&name=Text: Temperature</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=121&name=Text: The twelve basic concepts of science</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=671&name=Text: What is the property of Porosity?</loc>
 <lastmod>2011-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=111&name=The difference between thermal energy & temperature - lab</loc>
 <lastmod>2010-01-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=422&name=The dimensions and units of an oil tanker</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=378&name=The dimensions of the Great Lakes and their pollution levels</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=82&name=The form and function of common items and their variants - essay</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=567&name=The long and short of ecological succession - game</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=528&name=The molecular basis for hardness - read and present</loc>
 <lastmod>2011-01-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=545&name=The search for dark matter - read & respond</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=602&name=The Sendai, Japan disaster (3/11/11) as energy resources??</loc>
 <lastmod>2011-03-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=162&name=The six phase change processes- definitions and examples</loc>
 <lastmod>2010-02-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=724&name=The Sun's effect on the Earth - Unit or lesson sequence</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=130&name=The three ways that heat flows in and out of a house</loc>
 <lastmod>2010-01-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=551&name=The tragedy of the commons played out with goldfish - activity</loc>
 <lastmod>2011-01-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=15&name=The variables of a controlled experiment with a pendulum - questions, tasks</loc>
 <lastmod>2011-07-25</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=279&name=Thermal flat plate solar collector design - quiz</loc>
 <lastmod>2010-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=280&name=Thermal flat plate solar collector design - quiz</loc>
 <lastmod>2010-07-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=640&name=Three quizzes on conservation of momentum</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=464&name=Throwing balls at the edge of a cliff - A quick quiz</loc>
 <lastmod>2010-09-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=421&name=Tracking 10 carbon atoms through the carbon cycle</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=717&name=Tracking multiple energy flows while pushing a car</loc>
 <lastmod>2011-10-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=610&name=Tracking sunspots to figure out the sun's mass</loc>
 <lastmod>2011-04-12</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=634&name=Transducers - A pivotal technology promises big changes</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=560&name=Translate situations first into interactions, then forces</loc>
 <lastmod>2011-12-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=720&name=Trebuchet, catapult, and flower pollen launcher - compare</loc>
 <lastmod>2011-11-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=489&name=Trigonometry practice worksheet</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=758&name=Triple point of CO2 - demonstration</loc>
 <lastmod>2012-01-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=739&name=Twirl a marble on the table under a plastic cup</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=603&name=Two interesting problems in projectile motion</loc>
 <lastmod>2011-04-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=101&name=Types of forces and the resultant - a quiz</loc>
 <lastmod>2012-01-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=535&name=Uniformity:  Unit test</loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=44&name=Unit conversion tables</loc>
 <lastmod>2011-09-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=230&name=Unit plan - Energy forms, transformations & conservation</loc>
 <lastmod>2010-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=16&name=Unit test - Energy forms and transformations </loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=150&name=Unit test - Property, with emphasis on geology</loc>
 <lastmod>2012-03-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=168&name=Unit test - Renewable energy resources</loc>
 <lastmod>2012-04-13</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=129&name=Unit test - Solar passive home design</loc>
 <lastmod>2011-07-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=119&name=Unit test - The twelve basic concepts of science</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=114&name=Unit test - Thermal and Chemical Energy</loc>
 <lastmod>2010-01-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=423&name=Universal gravitation problem set</loc>
 <lastmod>2012-02-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=53&name=Use percentages to compare the old and new America's Cup boats</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=474&name=Using pulleys to measure Work and efficiency</loc>
 <lastmod>2011-10-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=207&name=Using radiosonde data to distinguish characteristics of the lower atmosphere</loc>
 <lastmod>2010-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=260&name=Using rice and marshmallows to understand density</loc>
 <lastmod>2010-03-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=445&name=Video demonstration:  CO2 absorbs Infra-red radiation </loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=705&name=Wanna help?  Addiction vaccine seems close</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=572&name=Wanna help?  Americans no longer tallest in world</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=444&name=Wanna Help?  Biofuels laws increase Greenhouse gases</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=842&name=Wanna help?  Brain genetics explore what makes humans human</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=639&name=Wanna help?  Develop an activity using a solar tracker</loc>
 <lastmod>2011-06-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=706&name=Wanna help?  Genes offer clues on speciation</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=762&name=Wanna help?  Genetic adaptation of early Afro-Americans</loc>
 <lastmod>2012-03-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=848&name=Wanna help?  How enzyme supplements are used in skin care products</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=847&name=Wanna help?  Mutated trout raise concerns near mine sites</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=761&name=Wanna help?  New, sophisticated devices to accurately track burned calories</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=703&name=Wanna help?  Pathological altruism</loc>
 <lastmod>2011-11-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=481&name=Wanna help?  Warm-blooded costs and benefits</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=690&name=Wanna help?  Why do children, but not adults, crave sugar?</loc>
 <lastmod>2011-09-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=594&name=Wanna help? - Air pollutants both heat and cool</loc>
 <lastmod>2011-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=734&name=Wanna help? 100 yrs after Edison, DC gets another look</loc>
 <lastmod>2012-01-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=244&name=Wanna help? 2009 Nobel prize for how ribosomes work</loc>
 <lastmod>2012-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=897&name=Wanna help? A national security drill to replace crucial transformers around the nation</loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=231&name=Wanna help? Adolescent brain development and behavior</loc>
 <lastmod>2010-02-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=76&name=Wanna help? Altruism may be an innate human trait</loc>
 <lastmod>2011-11-27</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=575&name=Wanna help? An antenna for the Navy made from seawater</loc>
 <lastmod>2011-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=239&name=Wanna help? Anatomy of a sprinter's foot</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=60&name=Wanna help? Anti-matter discovered in galaxy</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=140&name=Wanna help? Auto economy versus auto efficiency</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=538&name=Wanna help? Bayesian decision making </loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=335&name=Wanna help? Cassini satellite orbits Saturn</loc>
 <lastmod>2010-08-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=443&name=Wanna Help? Cities want unused EM spectrum</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=240&name=Wanna help? Cloth designed to be a capacitor-battery</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=752&name=Wanna help? Comparing flywheels and batteries for hybrid cars</loc>
 <lastmod>2012-03-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=588&name=Wanna help? Comparing the aurora on Jupiter and Earth</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=43&name=Wanna help? Cosmic rays can have enormous kinetic energy</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=536&name=Wanna help? Coyotes move into cities</loc>
 <lastmod>2011-01-18</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=506&name=Wanna help? Deep-ocean floor biome is complex and rich</loc>
 <lastmod>2010-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=115&name=Wanna help? Design a baby pod</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=735&name=Wanna help? Direct Current being used increasingly on power grid</loc>
 <lastmod>2012-01-22</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=233&name=Wanna help? Dopamine excels at its task</loc>
 <lastmod>2010-02-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=218&name=Wanna help? Earth becoming brighter.</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=51&name=Wanna help? Earthquake proof bridges</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=441&name=Wanna Help? Ecosystems around ocean floor oil seeps</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=662&name=Wanna help? Effect of wind & solar systems on grid reliability</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=787&name=Wanna help? Equations for the pasta shapes</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=234&name=Wanna help? Fabric color affect absorption of UV radiation</loc>
 <lastmod>2012-02-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=663&name=Wanna help? Feasibility and Issues around off-shore wind installations</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=50&name=Wanna help? Flash trading stocks depends on frequency</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=751&name=Wanna help? Flywheels are a better idea than batteries for hybrid cars</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=216&name=Wanna help? Generators vs. alternators for cars</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=179&name=Wanna help? Glacial melting rate estimate way off</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=61&name=Wanna help? Global distillation causes pollution at the poles</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=760&name=Wanna help? How hard is it for avian flue to spread?</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=235&name=Wanna help? How our tongues taste CO2. </loc>
 <lastmod>2010-02-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=708&name=Wanna help? Hybridization forms a new butterfly species  </loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=731&name=Wanna help? Increasing car efficiency without hydbrids or batteries</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=245&name=Wanna help? Insects survive winter with anti-freezes</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=621&name=Wanna help? Land area of USA shrinking due to measurement accuracy</loc>
 <lastmod>2011-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=206&name=Wanna help? Less water vapor slows Earth's warming</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=242&name=Wanna help? Lower fertility improves the world</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=241&name=Wanna help? Manufacturing with electomagnetic waves</loc>
 <lastmod>2010-07-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=710&name=Wanna help? Mass extinction of the dinosaurs - story update</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=673&name=Wanna help? Medications alter with temperature</loc>
 <lastmod>2011-09-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=704&name=Wanna help? Natural selection affects human evolution today</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=730&name=Wanna help? New discovery in the process of aging</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=750&name=Wanna help? New flywheel designs based on speed, not mass</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=75&name=Wanna help? Obituary of first person to "see" an atom</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=707&name=Wanna help? Obscure invertebrate casts light on how species evolve</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=638&name=Wanna help? Passive solar tax credit guidelines & solar tracker</loc>
 <lastmod>2011-06-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=740&name=Wanna help? People's perceptions of death vs. the vegetative state</loc>
 <lastmod>2012-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=618&name=Wanna help? Physics of the hit in American football</loc>
 <lastmod>2011-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=116&name=Wanna help? Properties for differentiating bacteria</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=670&name=Wanna help? Prospecting for oil by measuring porosity & permeability</loc>
 <lastmod>2011-08-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=766&name=Wanna help? RNA editing as a new way to evolve</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=664&name=Wanna help? Smart meters needed to build a smart electric grid</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=396&name=Wanna Help? Solar sails for traveling space</loc>
 <lastmod>2010-08-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=74&name=Wanna help? Sorry history of chronic fatigue as a disease</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=587&name=Wanna help? Stress and strain of sliding plates builds in Chile</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=237&name=Wanna Help? Structure discovered within liquids and gases</loc>
 <lastmod>2010-03-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=728&name=Wanna help? Super efficient hybrid boat design</loc>
 <lastmod>2011-11-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=219&name=Wanna help? Superatoms behave like individual atoms</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=753&name=Wanna help? Superconductivity explained within context of electric grid use</loc>
 <lastmod>2012-02-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=522&name=Wanna help? Surviving a tsunami; USGS survival brochure</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=137&name=Wanna help? Text/Lecture on efficiency of photosynthesis</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=236&name=Wanna help? The circular logic of the universe.</loc>
 <lastmod>2010-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=246&name=Wanna help? The enteric nervous system in our guts</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=232&name=Wanna help? The human body evolved for distance running.</loc>
 <lastmod>2010-02-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=574&name=Wanna help? The kilogram is finally defined using Planck's constant</loc>
 <lastmod>2011-02-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=619&name=Wanna help? The physics of metal versus wooden baseball bats</loc>
 <lastmod>2011-05-02</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=238&name=Wanna help? The story of metric time</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=849&name=Wanna help? The Y chromosome is diminished, but stable</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=520&name=Wanna help? Tracking the distribution of fireflies in N. America</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=502&name=Wanna help? Why amino acids are left handed.</loc>
 <lastmod>2010-12-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=713&name=Wanna help? With what does sleep time across species correlate?</loc>
 <lastmod>2011-10-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=424&name=Water cycle:  Data on global reservoir volumes </loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=483&name=Watersheds and divides - A quiz</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=382&name=Web sites on plate tectonics</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=320&name=Webquest on the electromagnetic spectrum (introduction)</loc>
 <lastmod>2010-08-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=175&name=Webquest: What is temperature?</loc>
 <lastmod>2010-01-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=759&name=What are compatible chemical families?</loc>
 <lastmod>2012-03-01</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=48&name=What are the dimensional properties?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=490&name=What are the dimensions of a cylinder? Hands-on activity.</loc>
 <lastmod>2010-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=347&name=What are the dimensions of a hat you make?</loc>
 <lastmod>2010-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=281&name=What are the energy forms behind our electrical outlets?</loc>
 <lastmod>2010-07-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=45&name=What are the energy forms of our energy resources?</loc>
 <lastmod>2009-09-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=440&name=What are the energy transformations in 70 processes?</loc>
 <lastmod>2011-09-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=8&name=What are the energy transformations in these common events</loc>
 <lastmod>2011-09-15</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=449&name=What are the input-outputs to simple processes?</loc>
 <lastmod>2011-10-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=395&name=What are the reasons for solar DHW features</loc>
 <lastmod>2011-12-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=772&name=What are the three patterns of Energy transformation in a cartoon?</loc>
 <lastmod>2012-04-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=791&name=What did you learn from the test?</loc>
 <lastmod>2012-03-04</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=633&name=What does the speed of a wave depend on? Hands-on inquiry</loc>
 <lastmod>2011-06-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=14&name=What don't you understand from the reading - 3 questions</loc>
 <lastmod>2011-10-11</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=247&name=What effect does brushing your teeth in hot water have?</loc>
 <lastmod>2010-02-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=697&name=What form of energy could they be talking about?</loc>
 <lastmod>2011-10-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=878&name=What happens to the garbage cans in the back of a pick-up?</loc>
 <lastmod>2012-04-05</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=450&name=What is a penny made out of?</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=457&name=What is gum made out of?</loc>
 <lastmod>2010-09-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=546&name=What is the frictional force all about? Lab</loc>
 <lastmod>2011-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=420&name=What is the IPCC and what did their report say</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=181&name=What is the map saying about diving off a board?</loc>
 <lastmod>2010-01-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=544&name=What is the net gravitational force within a dust cloud?</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=93&name=What is the scale of an atom's structure?</loc>
 <lastmod>2009-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=163&name=What properties do the human senses detect?</loc>
 <lastmod>2012-02-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=426&name=What property does the instrument measure?</loc>
 <lastmod>2012-02-14</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=589&name=What things and substances are in a burning candle?</loc>
 <lastmod>2011-02-23</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=497&name=What tugboat force is needed to move the aircraft carrier?</loc>
 <lastmod>2010-12-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=698&name=What would that absurb transformation be like?</loc>
 <lastmod>2011-11-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=887&name=What would the bite force of a crocodile depend on?</loc>
 <lastmod>2012-04-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=656&name=What's in the potato chip bag besides chips?</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=172&name=What's that force all about - Powerpoint presentation</loc>
 <lastmod>2011-11-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=27&name=What's the difference between accuracy and precision?</loc>
 <lastmod>2009-08-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=562&name=What's the drag force on different toy cars? - Lab</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=102&name=What's the weight component down the ramp, 10-min quiz</loc>
 <lastmod>2012-01-10</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=910&name=What's the weight component down the ramp? Quiz</loc>
 <lastmod>2012-04-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=558&name=What's wrong with a single-body diagram of an object hanging from 2 spring balances? Quiz</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=428&name=What's wrong with this diagram of a Bohr atom?</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=442&name=Where do these processes occur in the carbon cycle?</loc>
 <lastmod>2010-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=272&name=Where does a motorboat's energy go?</loc>
 <lastmod>2011-10-03</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=676&name=Where in the picture are the 12 basic science concepts?</loc>
 <lastmod>2011-09-06</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=213&name=Where is the efficiency in biofuel production?</loc>
 <lastmod>2010-02-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=83&name=Where on the T-bone steak would it cook fastest?</loc>
 <lastmod>2009-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=153&name=Where's the property in the cartoon?</loc>
 <lastmod>2012-02-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=563&name=Where's the resultant in the polygon?</loc>
 <lastmod>2011-01-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=436&name=Which can run faster - Bug or human?</loc>
 <lastmod>2010-08-29</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=41&name=Which collision causes the most damage - 5 min quiz</loc>
 <lastmod>2009-09-07</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=429&name=Which diagrams show how properties are related to their units</loc>
 <lastmod>2010-08-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=451&name=Which entity does not contain energy like the others?</loc>
 <lastmod>2011-09-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=465&name=Which variation on a rope swing will take you highest?</loc>
 <lastmod>2011-11-20</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=754&name=Why are winter tomatoes so tasteless? Audio clip</loc>
 <lastmod>2012-02-16</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=660&name=Why do nuclear reactor cores glow blue? </loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=95&name=Why does a rising balloon eventually burst?</loc>
 <lastmod>2009-12-30</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=518&name=Why does skim milk have more calcium than whole milk?</loc>
 <lastmod>2011-01-08</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=651&name=Why is it difficult to burn off an oil slick? - essay</loc>
 <lastmod>2011-07-21</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=96&name=Why/How do bowling balls wear out?</loc>
 <lastmod>2010-07-28</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=501&name=Will your fishing line break? Strategizing a problem solution.</loc>
 <lastmod>2010-12-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=486&name=Work (efficiency, power) comprehension test</loc>
 <lastmod>2011-11-17</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=573&name=Work (incl energy, efficiency, power) constructed response test</loc>
 <lastmod>2012-02-09</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=478&name=Work at different directions - An introductory worksheet</loc>
 <lastmod>2011-10-24</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=718&name=Work problems, without direction involved.</loc>
 <lastmod>2011-10-26</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=328&name=Write a letter explaining acid rain</loc>
 <lastmod>2010-08-19</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
 <url>
 <loc>http://curriculumcooperative.org/show_lesson.php?uid=564&name=Write your name with vectors and a resultant</loc>
 <lastmod>2011-01-31</lastmod>
 <changefreq>monthly</changefreq>
 <priority>0.9</priority>
 </url>
</urlset>
