SCREWSby Seth

SOME THINGS ABOUT SCREWS The ancient people made screws to make work easier. Screws can be reversed Screws are a helpful tools.

DEFINITION OF SCREWS

A screw is a metal object similar to nail, with a spiral ridge around it which is used to attach one thing to another.

DIFFERENT SCREWS

A screw is made of lots of inclined planes. Some stairs are shaped like screws. When you clean a gun you need something

long so you screw poles together. Some slides are shaped like screws. When you turn a screw the pieces come

together. Did you now the screw is one of six simple

machines that have been around since ancient times.

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