What do water and wind do to open fields? An interesting video lesson demonstrates how ground cover protects the loss of soil from rain and wind. It shows four soil samples with varying degrees of ground cover and how people collect the...

Soil infiltration has less to do with the soil than what is covering the soil. A quick video presentation demonstrates how different soil samples use water. The instructor takes note of both the infiltration demonstrated by each sample...

A video that investigates physical and chemical weathering and its effect on soil formation. [4:23]