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 Pulleys (Early Bird Physics Series)
About the Authors
Sally M. Walker is the author of many books for young readers. When she isn’t busy writing and doing research for books, Ms. Walker works as a children’s literature consultant. She has taught children’s literature at Northern Illinois University and has given presentations at many reading... |  |  |  |  The Great Book of Questions and Answers: Over 1000 Questions and Answers
The universe is a huge open space made up of billions of galaxies and an even larger number of stars. Our galaxy is called the Milky Way. Our solar system, including the Sun, the planets and their moons, forms just a tiny part of the Milky Way.
The Great Book of Questions and Answers is a comprehensive, fact-packed reference book... |
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