Across
- 6. invisible light
- 8. gives off light
- 10. mental picture
- 13. how energy is carried
- 14. ability to move or change
- 15. pass through
- 17. takes up space
- 19. a curved line
Down
- 1. max height of a wave
- 2. to bounce off
- 3. ability to give off
- 4. how fast something happens
- 5. peak of wave
- 7. peaks per second of a wave
- 9. to take in
- 11. range of wavelengths
- 12. carries energy from one place to another
- 16. group of atoms
- 18. to pass through