Destruction of the Earth's Crust
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Earth Science Series. Designed specifically for the middle and high school science classroom, this series introduces students to the various geologic forces and physiographic regions that have shaped our planet. Since the formation of the earth some 4.5 billion years ago there have been many physical forces at work to wear down the surface of the earth. This program discusses these complicated landforms and explores the processes of weathering so students see first-hand the results of the many forces which break down rocks.