Experts at the U of Hawaii answer questions about volcanoes and igneous rocks, earthquakes and seismology, natural disasters, geochemistry, the environment, pollution, hydrology and water quality, minerals, gems and crystals, geophysics, sediments and sedimentary rocks, and just plain ol' geology.

A new photo each day with a brief background.

Learn about NASA earth science projects related to air, thunderstorms, the earth's crust, tropical rainfall and water. Sponsored by NASA's Earth Science Enterprise.

Learn about the earth's creation, size and shape, atmosphere, and rocks. Includes photos and educational games.

Describes a trip to the magnetic north pole sponsored by the Children's Museum of Indianapolis. Includes science experiments and activities.

Offers satellite images, make a map, minerals and metals, ask the experts and information on the polar continental shelf.

Provides in-depth information about storms, atmosphere, fisheries, the Great Lakes, oceans, and El Nino. Material written especially for middle school students.

Information on many aspects of water, along with pictures, data, maps, and an interactive center.

Where on earth can you find the highest mountain, the greatest river, the thickest ice? Get the answers from Extreme Science.