Sunset Physics

12345678
Across
  1. 2. when the sun is close to us
  2. 4. light color with the longest wavelength
  3. 6. when the sun is farthest away
  4. 7. unit of measurement of wavelength and particle size
  5. 8. what class we are in (also the reason behind sunsets)
Down
  1. 1. distance between crests of a wave
  2. 3. normal color of sky (day)
  3. 5. ____ particle is larger than an air particle