Curated OER
What is the Composition of Soil?
Students examine the different components that make up soil. Using data, they identify the components of soil in their local area and discover how scientists use the soil to see how it was formed. They also describe the soil forming...
Other
What Is a Soil Test?
The North Carolina Department of Agriculture explains soil testing, taking a soil sample, and analyzing the results.
Other
Ed Hume Seeds: Testing Your Soil
Conduct a soil test to find out what nutrients your soil is lacking. This site gives directions on how to gather a soil sample and what nutrients you should test for to get the best soil.