It covers more than two-thirds of the Earth痴 surface, and all life on the planet depends on it, but how much do your students really know about water? Where does fresh water come from? What is the hydrologic cycle? How do we use water? What actions can we take to conserve and protect our water resources? Join students and scientists as they answer these questions. Travel to the Great Lakes, the Ogallala aquifer, the Colorado River watershed, and south Florida to learn about water supplies and the challenges to them. Includes a water usage poster. (Spanish-language track included.)
ISBN: 0-7922-2717-4
Copyright Date: 01-FEB-94
U.S. Price: $164.95
Canadian Price: $259
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