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Science -- Instructional issues
766 - 770
Wave of the Future
Tsunamis are the result of processes that shape the Earth's surface: earthquakes, volcanic events, and landslides. People cannot control the dynamic forces that drive tectonic events; however, they can reduce the number...
Water Vapor Circulation on Earth
Water vapor plays an important role in the water cycle and in the distribution of heat around the planet. By observing the movement of water vapor, scientists can study global wind patterns and the development of...
Earthwatch Radio: Vanishing Act in the Arctic
This radio broadcast features an expert in the study of the Arctic climate who has analyzed more than 20 years of satellite images that show the steady shrinking of the reflective ice cover of the Arctic Ocean. He...
Plate Tectonics: The Scientist Behind the Theory
The scientific community does not always embrace every new idea that comes along. Alfred Wegener, the scientist who first proposed the theory of continental drift, learned that the hard way. This video segment shows how...
This radio broadcast discusses the renewed interest among space scientists in studying asteroids. Once disdained as uninteresting, asteriods are now considered to represent pristine material, essentially unchanged since...
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