"In this book, readers will learn about one of the six simple machines as described by Renaissance scientists. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn how pulleys can move heavy loads with less force and over longer distances"--
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"In this book, readers will learn about one of the six simple machines as described by Renaissance scientists. Vibrant, full-color photos and carefully leveled text will engage young readers as they learn how pulleys can move heavy loads with less force and over longer distances"--
Read Less
