Across
- 2. movement of energy through waves
- 5. movement of one substance to another
- 7. transfer of heat through touch
- 9. a machine used to pull
- 11. a screw
- 12. heat waves
- 13. Gravity
- 15. a ramp
- 17. wfd
- 21. a bike is an example of this machine
- 22. power made from water
- 23. energy waiting to be used
- 25. energy that can be reused
- 26. energy in motion
- 28. work
Down
- 1. meter
- 3. machine a machine with few or no moving parts
- 4. make work easier
- 6. heat transfer through liquids and gases
- 8. energy that's nonrenewable
- 9. round that's in space
- 10. energy from plants
- 14. earth making its own energy
- 16. turbines that spin
- 18. axes are good examples of this machine
- 19. heat energy that's warm
- 20. energy from dead plants and animals
- 24. crobars
- 27. nuclear energy stored in the nucleus of an atom