I am holding an axe. A axe is a wedge. It helps to make things easier to cut.
I am holding a baseball bat. A basebal bat is a lever. The bat helps you to hit the baseball.
I am pointing at stairs. Stairs are an incline plane. an inclined pane helps to get things from one level to the next.
I am holding a screw. the screw is a screw. Screws help to hold things together.
I am pointing at a solar cover wheel. the wheel is part of a wheel& axle. It helps to put things on or of or can make things easier to move.
I am pointing at a pulley system. it is a pulley. Pulleys help to raise or lower things.
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