Simple machines make work easier. Discover how simple and compound machines lift things up, roll things along, turn things around, and even help your own body work. Learn how simple machines helped build the pyramids and change our world today.
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Seller: World of Books (was SecondSale), Montgomery, IL, U.S.A.
Condition: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00056502903
Seller: BooksRun, Philadelphia, PA, U.S.A.
Paperback. Condition: Very Good. 1. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting. Seller Inventory # 079228884X-11-1
Seller: Once Upon A Time Books, Siloam Springs, AR, U.S.A.
Paperback. Condition: Good. This is a used book in good condition and may show some signs of use or wear . This is a used book in good condition and may show some signs of use or wear . Seller Inventory # mon0000848223
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G079228884XI3N00
Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: As New. Like New condition. A near perfect copy that may have very minor cosmetic defects. Seller Inventory # D11A-02263
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. 1st Edition. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 3485282-75