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14.1 How Soils Form

In this section you will find materials that support the implementation of 4.1: How Soils Form. Use the navigation below to find the materials.

Section Materials


Visions of Earth, by AGI
A four-DVD set on interactions in Earth systems.

Cooperative State Research, Education and Extension Service, by USDA
You can access online information about soil through the U.S. Department of Agriculture’s Cooperative State Research, Education and Extension Service (CREES).

Dig It! The Secrets of Soil, by Soil Science Society of America (SSSA)
This exhibit covers these areas: geology and Earth systems; environmental science; soil science; and links to social studies. SSSA is also planning a traveling exhibit on the same topic.

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

Soils Photo Gallery, by 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: What is It?, by USDA-NRCS
A slide presentation about soil with explanations.

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

How fast do sediment grains of different sizes settle?, by Society for Sedimentary Geology
Check out this sample lesson plan for a lab about sediment grains settling rate.

State Soil Types, by USDA-NRCS National Soil Survey Center
Explains that each state has a representative soil series and how this is defined. Click on your state to view a written description, photograph, and distribution map for the soils in your state.

State/Area Soil Surveys, by USDA-NCS National Soil Survey Center
Click on your state to be linked to your state's soil survey.

Soil, by USDA
State soil fact sheets.

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Visions of Earth, by AGI
82 High-definition animations showing a variety of Earth and space system processes.

Observing how sediments are deposited, by TERC
Find a Flash animation representing decreasing stream velocity decreasing and the resulting depositional patterns.

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