SUPER SICK SCREWS
LUKE AND JACK
What is a screw?
A screw is a type of simple machine. Screws are simple machines that turn. A screw is made of metal. Screws come in different colors, shapes and sizes.
Examples of a screw.
Some examples of a screw are purell caps, glue covers, jars, water bottle caps and spray bottles. Those are some examples of a screw.