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NOVA scienceNOW is the companion website for a TV show on science breakthroughs and personalities. Learn...
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BEN: BiosciEdNet provides access to more than 4,000 reviewed resources covering 76 biological science...
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Dare to Compare invites you to test your knowledge against students nationally and around the world...
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NSF Multimedia Gallery provides nearly 100 videos and webcasts on a range of science topics: a fossil that may...
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