More Simple Machines!

Welcome back, boys!

Let's look at this diagram:

 What did we use as the examples for each the other day?

Lever? Pulley? Inclined Plane? Wedge? Screw? 

What are we missing?

Where's the Wheel and Axle??????

That's what "wheel" learn about today!

Assignment:
In groups, come up with 5 examples of a wheel and axle. 
YOU CANNOT USE A CAR'S TIRES OR STEERING WHEEL! 

What did you come up with?

Here's a cool video explaining it more!