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==Key Stage 2==
===Meaning===
[[File:PulleyBoat.png|right|300px|thumb|Pulleys are used on boats to raise the heavy sails.]]
A '''pulley''' is a set of ropes and wheels that can be used to lift heavy objects more easily.
===About Pulleys===
: A '''pulley''' can be used to raise the sails of a ship or lift an engine from a car.
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