ENERGY

1. Chemical

1.1. Coal

1.2. Batteries

1.3. Natural Gas

2. Nuclear

2.1. Nuclear Fission

3. Electrical

4. Sound

4.1. Environment

4.2. Man

5. Fuels for vehicles and Cooking

6. Can be Used to Generate Electricity

7. Space Exploration

8. Mechanical

8.1. Electric Motor

8.2. Water Turbines

8.3. Engines

9. Making Machines and Vehicles Move

10. Playing Music

11. Light

11.1. Light Bulbs

12. Gravitational

12.1. Earth

12.2. Sun

13. Heat/Thermal

13.1. Fire

13.2. Heat Pumps

14. Radiant

14.1. Stars

15. Used for Cooking

16. Provide Warmth

17. Illumination

18. Provies us a place to Stand on

19. X-rays, Gamma Rays, Microwaves