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

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

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

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Is a Blue Whale the Biggest Thing There Is? (Wells of Knowledge Science Series)

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What's Smaller Than a Pygmy Shrew? (Wells of Knowledge Science Series)

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Simple Machines: Wheels, Levers, and Pulleys

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How to Dig a Hole to the Other Side of the World

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

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

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One Giant Leap: The Story of Neil Armstrong

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Simple Story of the 3 Pigs and the Scientific Wolf

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