There are six simple machines a lever ,screw, axel and wheel, inclined plane, wedge, and a pulley.
A lever is a simple machine that help you lift big objects.
A screw is a simple machine that holds things together.
A axel and wheel is a simple machine that can move heavy things.
The inclinded plane is a simple machine that helps move objects from a low level to a high level easier.
A wedge is a simple machine that helps push things apart.
A pully is a simple machine that lifts things up and down they use a pully on a crane.
These 6 machines are still used today to move objects.
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