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Keep it simple
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Explains how farmers used simple machines such as the wheel and axle, fulcum andlevr, and inclined planes to help them get their produce to market.
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- ● children's books
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Explains how farmers used simple machines such as the wheel and axle, fulcum andlevr, and inclined planes to help them get their produce to market.
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"Explains how farmers used simple machines such as the wheel and axle, fulcum andlevr, and inclined planes to help them get their produce to market."
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