Build Your Own Chain Reaction Machines : How to Make Crazy Contraptions Using Everyday Stuff--Creative Kid-Powered Projects!
Paul Long
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The Milky Way and Beyond : Stars, Nebulae, and Other Galaxies
Britannica Educational Publishing
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The Britannica Guide to Political Science and Social Movements That Changed the Modern World
Britannica Educational Publishing
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The Britannica Guide to Inventions That Changed the Modern World
Britannica Educational Publishing
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The Britannica Guide to Numbers and Measurement
Britannica Educational Publishing
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The Britannica Guide to Algebra and Trigonometry
Britannica Educational Publishing
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The Britannica Guide to Statistics and Probability
Britannica Educational Publishing
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Medicine and Healers Through History
Britannica Educational Publishing
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A Closer Look at Biology, Microbiology, and the Cell
Britannica Educational Publishing
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Breakthroughs in Telephone Technology
Britannica Educational Publishing
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