A hands-on science activity book offers instructions for building basic wheel devices
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Grade 5-9 Experiments using wheels as parts of simple machines fill this innovative book. Readers learn to build models of pulley systems, gear systems, water wheels, windmills, paddle wheels, and the windlass. A list of parts and simple, clear directions with clarifying illustrations for building each model are followed by questions and suggestions of ways to change the design or arrangement of a system to get different results. This is followed by a section that explains the physics of each model. Safety precautions are given in the few, very minor places in which they are needed. All materials are common household objects. Some are throwaways such as juice containers and milk cartons. Others, such as paper plates and cups, pulleys, and pipe cleaners, are easily purchased. Since most models have more than one easily adjusted variation, this book is great vacation-time fun for mechanically minded young people. An adult might need to help with hammering a hole in one model and puncturing holes (in soft materials) in others, giving parents and children an opportunity to explore simple physics together. An invaluable resource book. Margaret M. Hagel, Norfolk Public Library System, Va.
Copyright 1987 Reed Business Information, Inc.
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Unknown. Condition: Good. No Jacket. Doty, Roy (illustrator). Former library book; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less 1.15. Seller Inventory # G0688063489I3N10
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Seller: SecondSale, Montgomery, IL, U.S.A.
Condition: Good. Doty, Roy (illustrator). Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00074772891
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Condition: good. Doty, Roy (illustrator). A copy that has been read, remains in good condition. All pages are intact, and the cover is intact. The spine and cover show signs of wear. Pages can include notes and highlighting and show signs of wear, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation, if youâre not satisfied with purchase please return item for full refund. Ships via media mail. Seller Inventory # OTV.0688063489.G
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Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Very Good. Doty, Roy (illustrator). Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Seller Inventory # GRP105265140
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Hardcover. Condition: New. Illustrated by Doty, Roy" (illustrator). PHOTO AND VIDEO OF PAGES TAKEN TO SHOW CONDITION PRIOR TO SHIPPING; Stored newPHOTOS EMAILED FOR MORE SPECIFICS WHEN REQUESTED; Book. Seller Inventory # 17076
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