Links for websites
http://www.swcs.org
http://soils.usda.gov
www.urbanext.uiuc.edu/worms/
http://yucky.kids.discovery.com/noflash/worm/index.html
www.harcourtschool.com/activity/dirt/
http://www.biodiversity911.org/soil/soil_main.html
http://www.epa.gov/gmpo/edresources/soil.html
http://school.discoveryeducation.com/schooladventures/soil/down_dirty.html
http://www.epa.gov/superfund/students/wastsite/soilspil.htm
http://www.absoluteastronomy.com/topics/Soil_contamination
http://www.doctordirt.com/soilfact.htm
http://soils.usda.gov
www.urbanext.uiuc.edu/worms/
http://yucky.kids.discovery.com/noflash/worm/index.html
www.harcourtschool.com/activity/dirt/
http://www.biodiversity911.org/soil/soil_main.html
http://www.epa.gov/gmpo/edresources/soil.html
http://school.discoveryeducation.com/schooladventures/soil/down_dirty.html
http://www.epa.gov/superfund/students/wastsite/soilspil.htm
http://www.absoluteastronomy.com/topics/Soil_contamination
http://www.doctordirt.com/soilfact.htm