energy forms and sources
Across
- 4. the ability to do work
 - 7. a form of energy that is not moving
 - 8. bow and arow's use this form of energy
 - 12. is a form of gas
 - 13. energy from dead and alive things
 
Down
- 1. energy from the flow of water
 - 2. a form of energy that is moving
 - 3. helps extract most forms of energy
 - 5. energy from the core of the earth
 - 6. a form of energy from the air
 - 9. energy from the sun
 - 10. energy from animals
 - 11. kinetic and potential energy
 - 12. a form of energy from the sun