The Sponge Model

 

 

Models are representations of concepts, objects, or systems, some of which can be excellent teaching tools. A household sponge will be used to demonstrate several characteristics of the relations of soil and water.

 

dry sponge runoff wetting sponge

 

"Dry" Soils

 

Infiltration and Runoff

 

Wetting and Saturation

water held drainage bearing capacity

 

Water Holding Capacity

 

Percolation and Drainage

 

Engineering and Bearing Capacity