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Screws
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Winding around : the screw
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The Way Things Work: Screws
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Pulleys
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Wedges
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Inclined planes
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Wheels & axles
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Levers
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Cranes
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Make this! : building, thinking, and tinkering projects for the amazing maker in you
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Cranes
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Machines go to work in the city
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Tires, spokes, and sprockets : a book about wheels and axles
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Rolling along : the wheel and axle
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Let's look at monster machines
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How can I experiment with a pulley
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How can I experiment with a lever
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Experiments with simple machines
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How can I experiment with an inclined plane
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The LEGO Technic idea book : simple machines
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Wheels
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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
