Soils
Investigation 4:
Examining Core Samples of Soil

This investigation will help you to:

Effective Soil Sampling Techniques,
PETRIK Library
Lists and discusses five guidelines for collecting soil samples.

Soil Sampling,
Jeffrey S. Jacobsen
Discusses sampling procedures for soil sampling.

Soil Photo Gallery,
USDA-NRCS National Soil Survey Center
This site includes a written description of different soil types and a photograph and United States distribution map for each soil type.

State Soil Types,
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.