[ Kids/Teens/Mature Teens ] Learn about the earth by reading short articles on plate tectonics, cycles, geologic time, adaptation and more.

[ Kids/Teens/Mature Teens ] Learn about earth structure, atmosphere, natural energies, water resources, living things, climate and cycles. Page includes photos and explanation of terms.

[ Teens/Mature Teens ] The Kentucky Geological Survey offers recipes for appetizers, desserts and other food that help to explain earth-science concepts.

[ Kids/Teens/Mature Teens ] Explains how layers of the Grand Canyon were formed over a period of about 2 million years. Many illustrations. Gives a couple different theories about some of the details.

[ Teens/Mature Teens ] Explore a photo gallery of gems, volcanoes, rocks, minerals and meteorites. Offers research, collections and exhibits.

[ Kids/Teens/Mature Teens ] Learn how Biology, Geology, Hydrology, and Geography can help us understand our changing world.

[ Kids ] Learn about Yellowstone National Park with games and activities like the Animal Alphabet Book, the Yellowstone Coloring Book and a Scavenger Hunt.