Unit 2 Vocab: Discovering New Worlds

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Across
  1. 1. Gaseous, large, far from Sun
  2. 6. Of space
  3. 7. Spectra from gas
  4. 9. Nova Collapse of Massive star
  5. 10. Proof the universe expands
  6. 14. Spectra with all wavelengths
  7. 17. Ability to sustain life
  8. 19. Gas and dust collecting
  9. 20. Amount of time
  10. 21. Spectra blocked by gas
Down
  1. 2. Heavier elements are made
  2. 3. How far from a circle
  3. 4. Rocky, small, close to Sun
  4. 5. H stands for...
  5. 8. Unit of temperature
  6. 11. Two nuclei become one
  7. 12. Brightness
  8. 13. Has strength and direction
  9. 15. Size of measure
  10. 16. Points inside an orbit
  11. 17. He stands for...
  12. 18. Measure of distance