Across
- 4. lowest frequency wave
- 7. (UV) a type of invisible light that is beyond violet on the spectrum
- 9. how often or fast something happens
- 10. a curved line that shows the characteristics of a wave (shows wavelength and amplitude)
- 12. to give off
- 13. a pattern that describes how energy is carried from one place to another
- 14. a type of wave that carries energy from one place to another even through empty space
- 16. a range of different forms of light from radio to gamma rays (wavelengths large to small).
- 19. the distance from one peak of a wave to the next
- 21. the ability to make things move or change
Down
- 1. a group of atoms joined together in a particular way
- 2. to pass through (no change occurs)
- 3. light ROYGBIV - red, orange, yellow, green, blue, indigo, violet
- 5. anything that takes up space and has mass (solid, liquid, gas, plasma)
- 6. to form a mental picture of something that cannot be seen
- 8. to bounce off without absorbing
- 11. the number of peaks in a wave that pass in a second
- 15. highest frequency wave
- 17. a cell that protects you from harmful UV rays
- 18. source an object that emits light
- 20. a type of light used to scan your body