Soils

PDF versionPDF version

Soil forms as the solid rock of the Earth, called bedrock, breaks down. It usually takes thousands of years for soil to form from bedrock. In some places, soil forms directly on top of bedrock. In other places, soil forms on a thick layer of loose rock and mineral material. This material, called sediment, has been carried from distant areas by rivers or glaciers.

Teaching Resources from the Education Resources Network

Curricula & Instruction Resources

Iowa Clarion soil profile
Resource Type: Classroom Activities

Sandy soils allow water through easily and clay soils do not. Garderners usually prefer loam...

Iowa Clarion soil profile
Resource Type: Classroom Activities

Soil scientists often examine soils and record soil data outside. Soil is not just topsoil; it...

Iowa Clarion soil profile
Resource Type: Classroom Activities

The key properties of soil (physical, biological, and chemical) determine recreation, crop...

 

Teaching Media Resources

Irrigation system
Resource Type: Videos or Animations

Loads of salt aren’t just bad for humans, but plants as wall. Plants absorb the salt through...

Iowa Clarion soil profile
Resource Type: Image Collections

A curated collection of soil type images from the Earth Science World Image Bank to show...

Soil scientists studying sand deposited by floodwaters
Resource Type: Maps and Visualizations

This site allows students to access information about their local soils. Students can see how...

 

Outreach Programs

Inspecting wind-eroded soil
Resource Type: Online Outreach Programs

The Conservation and Survey Division (Nebraska Geological Survey), the natural resource survey...