What goes up must come down. Everybody knows that. But what is it that pulls everything from rocks to rockets toward the center of the earth? It's gravity. Nobody can say exactly what it is, but gravity is there, pulling on everything, all the time. With the help of an adventurous scientist and his fun-loving dog, you can read and find out about this mysterious force.
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What goes up must come down. Everybody knows that. But what is it that pulls everything from rocks to rockets toward the center of the earth? It's gravity. Nobody can say exactly what it is, but gravity is there, pulling on everything, all the time. With the help of an adventurous scientist and his fun-loving dog, you can read and find out about this mysterious force.
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Add this copy of Gravity is a Mystery to cart. $11.18, good condition, Sold by ThriftBooks-Reno rated 4.0 out of 5 stars, ships from Reno, NV, UNITED STATES, published 2007 by Collins.
Add this copy of Gravity is a Mystery (Let's-Read-and-Find-Out Science 2 to cart. $11.19, very good condition, Sold by Half Price Books Inc rated 4.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2007 by Collins.
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