Gravity is a force that attracts objects with mass towards each other. Simple machines like brooms and screwdrivers make tasks easier by multiplying the force applied to them. Screws are a type of simple machine that are commonly used but their function as machines may not be realized.

1. Gravity And
Force

2. Simple machines
What is Gravity
are very helpful in
life, they help when
you are cleaning
(like with a
broom). Even when
you are playing on
a leap frog because
when you need
new batteries you
use a screw driver

3. Screws
Screws are a type of simple machines. You may not realize it but you use a screws a lot more than you think.