
This simple machin i am holding is a screw.It is used to tighten thing down or to hold thing together.I found this screw in my barn.
This simple machine i am holding in my hand is a incline plane.It is also called doorstoppers or anything that is like a hill.This object is usefu for stopping things.I found this object by my door.

The simple machine is a pulley.It is useful for lifting things that might be heavy or just makes it easier to lift.I found this in my parent room.

The simple machine i am holding in my hand is a wedge.It is also known as a knife or axe or anything that divides an object.These are useful for cutting things.I found it in my kitchen drawer

