1. Energy transfer through balls

2. Materials A large heavy ball (Basketball)
A smaller, light ball (Tennis Ball)

3. Methods Make sure you have plenty of room
Put smaller ball on top of heavier ball, holding one hand under basketball and one hand on top of tennis ball
Let go of both balls at exactly the same time
Observe what happens

4. What do you think will happen?

5. Observation
When I dropped the balls at the same time, the tennis ball bounced off the basketball and flew high into the air.
Both balls hit each other just after they hit the ground.
A lot of the kinetic energy in the larger basketball was transferred through to the smaller tennis ball sending it high into the air.

6. Conclusion
While I held the balls in the air before dropping them they had another type of energy called “potential energy”
The balls gained this through the effort it took me to lift the balls up.
It is interesting to note that energy is never lost, only transferred into other kinds of energy.