* Toy Pinwheel, * Pot with water, * Pot-holder glove, * Heat source to boil water.
Boil water in a pot and using a pot holder glove to hold the toy pinwheel over the steam coming from the pot. Observe what happens to the pinwheel. Take the pinwheel away and observe what happens.
Steam is heat energy that is converted to wind energy and moves the toy pinwheel. This science activity is a prominent example of conversion of energy; heat energy to wind or motion energy.
The heated air molecules or steam from boiling water moves the toy pinwheel. The toy pinwheel stops when it is taken out.