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Simple machines and how we use them
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Simple activities introduce such machines as the lever, the inclined plane, the screw, the fixed pulley, the wheel and axle, and the wedge, and show how we use these tools to make our work easier.
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Simple activities introduce such machines as the lever, the inclined plane, the screw, the fixed pulley, the wheel and axle, and the wedge, and show how we use these tools to make our work easier.
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