- United States Department of State
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Can anything escape the gravitational pull of a black hole?
A True Book: Space series dives into...Added August 14, 2014 - This item has been added.
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A True Book-Physical Science
Whether you're an aspiring inventor or an everyday science buff,...Added August 14, 2014 - This item has been added.
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A True Book-Physical Science
Whether you're an aspiring inventor or an everyday science buff,...Added August 14, 2014 - This item has been added.
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Look! Up there! In the tree! Is it a bird, a mammal, an insect? From the highest part of the rain...Added August 14, 2014 - This item has been added.
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Discover how ecologists study the relationships between living things, climates, and Earth...Added August 14, 2014 - This item has been added.
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Whether you're interested in weather, oceans, or even the prehistoric world, earth science covers...Added August 14, 2014