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The World of Tools and Technology is a great science accompaniment to a history study of Ancient Egypt where many of the basic tools were used to build the pyramids. The tools studied include the lever, inclined plane, wedges, screws, wheel and axle, and pulleys. In addition, friction, gears, cranks, springs, and tool power are studied.

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Cathy Duffy - 100 Top Picks for Homeschool Curriculum

The World of Tools and Technology Prep to 7 E-book

$25.00Price

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