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Moving heavy things
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Bathtubs, slides, roller coaster rails : simple machines that are really inclined planed
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Wheels
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Tires, spokes, and sprockets : a book about wheels and axles
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Scoop, seesaw, and raise : a book about levers
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Pull, lift, and lower : a book about pulleys
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Cut, chop, and stop : a book about wedges
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Step-by-step experiments with simple machines
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The Way Things Work: Inclined Planes
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The Way Things Work: Wheels & Axles
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The Way Things Work: Pulleys
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Sensational science projects with simple machines
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The Way Things Work: Levers
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Castle under siege!: simple machines
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The Way Things Work: Screws
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Sid The Science Kid: Gizmos And Gadgets
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Simple machines : wheels, levers, and pulleys
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The fort on Fourth Street : a story about the six simple machines
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The LEGO Technic idea book : simple machines
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Splitting apart : the wedge
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Pressing down : the lever
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Winding around : the screw
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Move it! Work it! : a song about simple machines
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Simple machines
