There are 6 simple machines:
Wedge: The wedge cuts something in half.
Pulley: The pulley lifts something up and down.
Inclined plane: The inclined plane is like a ramp an wheelchair ramp.
Lever: The lever is sometimes pulling something up from a small amount to a big amount.
Screw: The screw is used to put things together and back together.
Wheel and axel: The wheel and axel moves something by rolling it around.
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