Simple Machine Centers

In 3rd grade were doing centers on simple machines.  1) using K-nex toys to expirement with the gears in it.  2) using a wheel and axel to roll dough 3) using a needle with a wedge to sew 4) using an inclined plane and a fulcrum to make a catapult to launch a marshmallow 5)  using K-nex toys to build a wheel and axel 6) using an inclined plane to pull a toy car with less effort

These were fun to experiment with.

- Maxwell