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"Can you solve your problem with an inclined plane or a lever? Readers will learn about how simple machines work in this book for early readers."--
Simple machines --- Levers --- Inclined planes
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"Is it easier to lift toys with a wheel and axle or a wedge? Readers will learn about how simple machines work in this book for early readers" --
Wedges --- Wheels --- Axles --- Simple machines
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Advertising --- Advertising --- Clothing and dress
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Levers --- Augers --- Screws --- Ice fishing
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