Investigation 3 - Rollers

What's a wheel system?

You put 2 big red wheels on an axle. By Tess

How would you make a wheel system that will go straight?

You put big red wheels on each side of the axle. They have to be the same size.

by Yoony and Edward

How would you make a wheel system that will turn?

You put one red on one side and a small yellow one on the other side of the axle.

by Matthew T.

Check out the pictures!