Pull, Lift, and Lower: A Book About Pulleys (Amazing Science: Simple Machines)

Roll, Slope, and Slide: A Book About Ramps (Amazing Science: Simple Machines)

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Scoop, Seesaw, and Raise: A Book About Levers (Amazing Science: Simple Machines)

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How Do You Lift a Lion? (Wells of Knowledge Science Series)

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Tires, Spokes, and Sprockets: A Book About Wheels and Axles (Amazing Science: Simple Machines)

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Simple Machines (Starting with Science)

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Simple Machines (Let's-Read-and-Find-Out Science 2)

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Simple Machines (Rookie Read-About Science (Paperback))

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Simple Story of the 3 Pigs and the Scientific Wolf

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Explore Simple Machines!: With 25 Great Projects (Explore Your World)

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Forces Make Things Move (Let's-Read-and-Find-Out Science 2)

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