1. Simple Machines

2. Simple Machines Simple machines help us do work.
Machines make work easy.
There are 6 kinds of simple machines.

3. The 6 kinds of simple machines are:
Inclined plane
Wedge
Screw
Wheel and axle
Pulley
Lever

4. Inclined Plane
An inclined plane is like a flat board that is higher on one end.
A person on a wheelchair would use an inclined plane.
I use one on the playground – the slide, of course!

5. Wedge A wedge pushes things away from each other.
A wedge is 2 inclined planes
put together like a V.
Wedges split things.
I use wedges every day –
forks and knives, of course!

6. Screw A screw winds and winds around itself.
Screws hold things together and can make them go up and down.
I used screws - to build my birdhouse, of course!

7. Wheel and axle A wheel and axle is a pole and a circle.
The pole lets the circle turn around it.
You can use a wheel and axle to move things.
I use a wheel and axle every day – my skateboard, of course!

8. Pulley
The pulley is like a wheel and axle with a rope instead of a pole.
If you put a heavy thing on the rope and wind the other end around the wheel, you can pull the heavy thing.
We use a pulley at school every day – to raise our school flag, of course!
             

9. Lever A lever is a board on top of something else.
You can balance things or move them.
Cave men used levers to move rocks.
I use a lever every day – to open my can of soda, of course!

10. They make my life easy and fun!
Simple machines are GREAT!
They make my life easy and fun!