Across
- 2. light gets absorbed, which is why all the colors look the way they do.
- 5. are how long a wave is.
- 6. visible light is the color with the longest wavelength.
- 7. is the measurement of a radio wave's frequency.
- 8. waves can travel through space.
- 9. are vibrations that transfer energy through a medium.
Down
- 1. light makes all the colors of the rainbow.
- 3. waves are the fastest traveling waves.
- 4. increase while frequencies decrease, and vice versa.