Physical Systems DVD

While we exert an influence over our planet, the surface of Earth is constantly being modified and reshaped by geologic forces such as volcanic activity and earthquakes, and other physical processes such as weather and erosion. In Physical Systems, students will explore the nature of our planet's four main physical systems -- the atmosphere, lithosphere, hydrosphere and biosphere -- and discover that what happens in one system has vast repercussions on the others. Part of the multivolume Geography for Students Video Series. A teacher's guide is included. Closed-captioned.