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        Water | Science Trek

        This video segment from IdahoPTV's Science Trek informs us that only 3% of all the water on earth is fresh water, but most of that is frozen. Only .3% is available for use. See how the power of a river formed Hells Canyon on the Snake River in Idaho. Learn why it's important to conserve water.

        Visit the Science Trek companion Web site to learn more about Water.

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