June 25, 2009
Vehicles had a hard time getting to class today.
Today the class made cars to go by rubber band.
They really went fast and far.
This project looks like a toy.
Then they made many more of the simple machine projects from the instruction cards.
windshield wipers roller conveyor
Turnstile uses a pawl and ratchet to keep motion in one direction.
Here are some non simple machine projects.
Art machine can be used to make cards.
