Zeroing in on a single science topic, these books are packed with exciting experiments and ideas for science projects. Ages 8-12.
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March 1993, Paperback
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March 1993, Paperback
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July 1994, Paperback
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September 1992, Paperback
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December 1996, Paperback
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January 1996, Paperback
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February 1998, Paperback
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January 2000, Paperback
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March 1993, Paperback
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February 1995, Paperback
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