Offers instructions for creating simple machines using levers, wheels, and pulleys to conduct experiments that demonstrate such concepts as energy, force, and friction.
"synopsis" may belong to another edition of this title.
The author, Jon Richards, has written and edited many science and technology books for children.
"About this title" may belong to another edition of this title.
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Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. Seller Inventory # 9487153-6
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Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Library Binding. Condition: Fair. No Jacket. Former library book; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less 0.75. Seller Inventory # G1404239081I5N10
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Seller: Irish Booksellers, Portland, ME, U.S.A.
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