Soil is a Filter

This activity uses different soil types to examine the filtering ability of soil when exposed to contaminants. Students will discover that soils physically and chemically filter impurities out of water.

See video (YouTube): Soil is a Filter: Annotated

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Dirt Pudding demonstrates Soil Horizons

Soil scientists call soil layers horizons.

Dirt pudding is a fun (and tasty) way to learn about soil horizons.

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The Importance of Soil


Once a society has the basic needs of food and water, clothing, and
shelter met, it can develop other pursuits, fashion, culture,and art.
Soil provides the historic media for all these pursuits.

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