screw

** A screw is a simple machine that helps hold things together. I screw works by drilling it into something like wood to make the pieces of wood stay together. **


 * A Screw is made out of __several__ different simple machines. Therefore it is a compound machine because it has several parts to it. **


 * The ridges in the screw if you look close enough look similar to an __ inclined plane __ revolving around the base of the screw. **


 * Another simple machine is the __wedge.__ The screw splits into the model, like a wedge does and therefore is type of wedge. **