ddekraker Mr. De Kraker
Valley Christian High School  
http://www.bcschools.org
 
My Quia activities and quizzes
Introduction to Earth Science
https://www.quia.com/jg/32576.html
Matter, Minerals, Rocks
https://www.quia.com/jg/32031.html
Tectonics
https://www.quia.com/jg/39046.html
Earthquakes
https://www.quia.com/quiz/109343.html
Atmosphere and Weather
https://www.quia.com/jg/40759.html
Surface Processes
https://www.quia.com/jg/47524.html
Last updated  2008/09/28 09:44:14 PDTHits  1592