DH29110044
GEOCYCLES
Planet Earth is an amazing machine, and we -and our future -are riding on it. This DVD introduces students to the Earth system's primary interacting subsystems (the biosphere, geosphere, hydrosphere, and atmosphere); the nitrogen, carbon, and water cycles; and three surface processes: weathering, mass -wasting, and erosion. The greenhouse effect, the impact of acid rain on the environment, and diminishing freshwater resources around the world are considered as well.

Review
~ Recommended by Science Books & Films.
DVD
Grades 7-12
19 minutes
2006
 
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