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By TED-Ed
Published in 2013
Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and discusses who is using it and to what ends.
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2
The world is a watery place. But just how much water exists on, in, and above our planet? This set of data and tables show the amounts of water on Earth.
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3
NBC Learn and the National Science Foundation explore the threats and challenges to our most vital natural resource.
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4
Award-winning science, math and technology videos for grades K-12.
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5
"Earth science resources. Each """"Chapter"""" includes animations and movies, question answers, learning objectives, quizzes, related readings, flash cards, a glossary, and internet resources. "
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6
Fun, interactive, research-based simulations of physical phenomena from the PhET project at the University of Colorado. Includes simulations in categories such as: physics, biology, chemistry, earth science, and math.
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7
Published in 2010
Did you know that only 1% of Earth's water is fresh and available for consumption? Fresh water is the world's most essential natural resource, but it's also one of the most threatened. National Geographic magazine's April issue celebrates and explores this important resource.
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