Pulleys are simple machines that has a wheel (or more than one wheel) with a groove. The groove helps keep something like a rope or even a chain in its place. Using a pulley you can move or lift things that are heavy. A person pulls on one end and it lifts the load on the other end. Pulleys make it easy to lift things. An escalator has pulleys at the top and bottom. Flag poles are an example of pulleys. Pulleys are very important in our life.We love PULLEYS!!! :) :) :)
Great blog post about pullys girls!
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