Investigation 1: Beginning to Investigate Soil

This investigation will help you to:

To learn more about soil formation and types, visit the following web sites:

Soils Photo Gallery, USDA-NRCS National Cooperative Soil Survey
This site includes a written description of different soil types. Also includes pictures and desciptions for the state soils.

Soil Types, University of Illinois
This site discusses soil types and particle sizes.

Soil: What is It?, USDA-NRCS
A slide presentation about soil with explanations.

Keys to Soil Taxonomy, USDA-NRCS
Online textbook covers a wide range of topics, including which soils scientists classify and how they classify them.

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IES Soils
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