Simple Machines

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Discuss with your children how they use machines to make work easier. You may want to identify machines your children use often such as a bus, a stapler, or a bike. A simple machine is a tool that uses force to make work easier. While machines can have many moving parts, a simple machine has none or very few moving parts. Simple machines need a single force to operate. A ramp, lever, pulley, and a wheel and axle are examples of simple machines.