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.
Learn about earth structure, atmosphere, natural energies, water resources, living things, climate and cycles. Page includes photos and explanation of terms.
Offers interviews with a scientist and amazing adventure stories. Learn which rocks or minerals are in items from the kitchen and read interviews with kids.
The Smithsonian Museum of Natural History presents articles about gems, minerals, rocks, mining, earth movements, volcanoes, and materials from other planets in our solar system.
Rex the Dino Detective helps answer questions about rocks, fossils and minerals. Also offers tips for planning your own field trip. By The Children's Museum of Indianapolis.
|