Unit 2: Universe Formation

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Across
  1. 2. take something in
  2. 5. a shortening of wavelength
  3. 7. unique material defined by its number of protons
  4. 10. when everything expanded from a single point
  5. 12. the combination of protons and neutrons
  6. 13. a positively charged particle
  7. 14. the motion of light
  8. 15. identifying elements using light
Down
  1. 1. a unit of distance
  2. 3. a lengthening of wavelength
  3. 4. the distance from one point to itself on a wave
  4. 6. send something out
  5. 8. a negative particle
  6. 9. what a wave moves through
  7. 11. allows something to do a thing
  8. 12. a neutral particle
  9. 14. the range of wavelengths of light