Secrets of Soils

Discover the amazing world of soils with images and information from the Dig It! The Secrets of Soil.
 Part of the Smithsonian National Museum of Natural History site.

Interactive look a the nature, formation and management of soils, videos and online educational activities

 

 Links @

http://forces.si.edu/soils/index.html

http://en.wikipedia.org/wiki/Pedology_%28soil_study%29