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a bar that pivots around a fixed point; a seesaw

inclined plane

a sloping surface that makes it easier to move objects to a higher or lower place; ramp


the amount of space an object moves


a type of inclined plane used to split objects apart; axe


a simple machine that is made up of a wheel on a post with a rope around the wheel

wheel & axle

this machine makes it easier for things to roll

compound machine

two or more machines working together to make work easier; scissors

complex machine

a car engine; many simple machines put together that uses fuel to run.

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