By Caitlin C.
What Are Screws?
Imagine you have to put a deck together how would you put the wood together? You'd use a screw!! The screw is made up of two parts: the pole and an inclined plane that's wrapped around the pole. Here is an example of a screw: a door has a screw to hold it in its place. If you look at where the door is when you close it you will see a screw. Think of a jar of anything, take of the top and look at the ridges, it's a screw!! A screw is a simple machine and it makes work easier!