Physical Properties of Soil
Compiled by Mark Francek (more info) at Carleton College (more info) (SERC) and Central Michigan University (more info)
Find an interactive animation about the physical properties of soil.
Soil Texture, North Carolina State University (more info)
This interactive Flash animation displays an example in which the percent sand, silt, and clay for a silt loam is determined. Students are then requested to enter sand, silt, and clay values in order to predict the soil texture classification.