Across
- 1. push or pull
- 3. music
- 5. release large amounts of energy
- 7. how far you will go
- 10. water
- 11. ramp
- 14. refers to living or recently living organisms we can use as energy resources
- 15. energy deep beneath the earth surface
- 16. moving
- 17. holding a heavy object while moving
- 18. can't use again
- 19. helps hold heavy objects
Down
- 2. the movement of heat threw air
- 4. moving air
- 6. able to use again
- 8. not moving
- 9. type of simple machine
- 12. heat
- 13. from dead plants and animals that died millions of years ago