Across
- 4. the spectrum that is used to determine the length of a wave
- 7. About the size of a pinpoint
- 8. We can use this to see through human skin
Down
- 1. Often referred to as UV
- 2. Is about the size of an atomic nuclei
- 3. The only type of wavelength that we can see
- 5. The lowest frequency wave on the spectrum
- 6. Has a frequency of roughly 10 to the 8th