Soil Formation

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Summary

In this live-action program viewers will learn that Soil is the top most layer of earth, lying on top of a layer of bedrock. Soil is often black or dark brown to red, comprised of mixture of organi...

In this live-action program viewers will learn that Soil is the top most layer of earth, lying on top of a layer of bedrock. Soil is often black or dark brown to red, comprised of mixture of organic remains, clay and rock particles. Students will come to understand that all soil formation begins with the break down of rock or parent material over time by mechanical weathering such as frost or rain, or cycles of heating and cooling. They will discover that scientists have classified soil types according to their characteristics. The program discusses the fact that most soils support a thriving community of microorganisms and invertebrates, aiding the breakdown of organic matter in which plants grow.

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