a. Heat
b. Light
c. Mechanical
d. Chemical
e. Sound
f. Electrical
g. Gravitation
1. Falling rocks from the top of a mountain
2. Batteries
3. Clapping your hands
4. The energy that runs a refrigerator
5. Bowling ball
6. Rubbing your hands together
7. Gasoline
8. Flash light
9. Lightning
10. Boiling water on a stove
11. Lightened candle
12. Water flowing down a waterfall.
13. A whistle
14. Energy released from food after it is eaten.
15. The rumble of thunder from a storm​