Soil all around -- The scoop on soil -- Digging into layers -- Working together -- Activity: Soil comparisons -- Glossary -- Show what you know -- Websites to visit -- About the author.
Summary
Soil hides most of the time, but it's important. Dig into the layers of soil and learn how it is made. Find out how soil helps plants and other living things thrive. Are you ready to get your hands dirty?
