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