Simple Machines Educational Facts Children's Technology Book - Kids, Bold
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Basically, simple machines are mechanical devices that help to increase the force applied to an object, as well as to its strength and direction. These devices are also used to move things from place to place.

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Basically, simple machines are mechanical devices that help to increase the force applied to an object, as well as to its strength and direction. These devices are also used to move things from place to place.