NSDL Science Refreshers 1 result returned Resources for Science > Earth Science > Earth Process and Materials > Soil > FormationThe Dirt on Soilhttp://school.discovery.com/schooladventures/soil/index.htmlThis page is from Discoveryschool.com. It has three sections. The first one, Down and Dirty, describes the various soil horizons. The second section, Field Guide, identifies some soil organisms and the third section, Soil Safari, is an animated tour of th Resource Type: Reference Material - Nonfiction Reference, Audio/Visual - Illustration, Audio/Visual - PhotographGrade Level: K, 1, 2, 3, 4, 5, 6 |
