Thursday, September 11, 2008

Levers

Levers
Levers make work way easier. They are a type of simple machine.
A lever has a fulcrum, a force and a load. Levers lift heavy weights and are used to pull nails out of walls.
Levers have classes. One is the first class, two is the second class and three is the third class.
A lever helps us because it lifts heavy weights from here to there. A wheelbarrow is a lever, it helps to shift heavy rocks.
Levers are important because people need to use them at some time in their lives for building, lifting and shifting.
By Max

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