Science!

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Across
  1. 2. used to find tempatures of a star based on color
  2. 5. different types of stars
  3. 9. units that stars are measured in
  4. 10. how fast a wave is traveling at
  5. 11. a trough and a crest together
  6. 12. bottom of a wave
  7. 13. brightness how bright a star is to us from earth
Down
  1. 1. how much energy a star has
  2. 3. how oftenw waves occur
  3. 4. the lengh of a wave
  4. 6. a way to measure a stars distance from earth
  5. 7. top of a wave
  6. 8. measures different posoitions of a star
  7. 14. an interval or portion of time