It takes a lot of energy to support life on Earth. Where does it all come from?

There are four horizons (layers) of soil: O, A, B, and C. Learn about them all here.

Have you ever wondered what the topography of your town is? Just enter an address to explore your town and other places on Earth with this map.

What makes the lithosphere a unique layer of earth? Follow the link to learn more about the "coolest and most rigid part of the Earth." Find images, diagrams, and an encyclopedia article. Note: Links to the maps are no longer available. 

What is the difference between the continental crust and the oceanic crust? Dig into this site and learn about the earth.

Rocks can change from one form to another. Find out how in this Study Jam from Scholastic.