|Ever-Changing Earth for Students: Erosion DVD
Relates the role of gravity in erosion, documents how scientists study erosion, highlights the California landslide problem, surveys the destruction caused by fast erosion, and discusses why deforestation and development increase the erosion process.
|K - 5||DVD||$29.95|
|Dynamic Earth CD-ROM
What's the difference between a tornado and a hurricane?
|3 - 5||CD-ROM||$49.95|
|Rocks and Minerals: The Hard Facts VHS
Travel with a geologist, showing how rocks are formed.
|3 - 5||VHS||$29.95|
|Jeff Corwin Experience: Reptiles in the U.S. and South America VHS
Travel across the United States and to South America to view some of Jeff's favorite cold-blooded air-breathing vertebrates.
|3 - 8||VHS||$39.95|
|Rocks and Minerals: The Hard Facts DVD
Meet the hundreds, even thousands, of fascinating organisms that can be found in a single drop of pond water.
|3 - 8||DVD||$29.95|
|Rocks, Minerals, and Soils DVD
An in-depth look at our planet's rocks, minerals, and soils
|3 - 5||DVD||$59.95|