Life Cycle of a star

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Across
  1. 1. a high number that isn't million
  2. 3. the way stars are measured
  3. 4. chemical element of atomic number 2
  4. 5. pulls down
  5. 6. a small sun or star
  6. 7. a type of tempature
  7. 8. matter u cannot touch
  8. 9. a huge star
  9. 12. energy in the nucleus
Down
  1. 2. a color a star might be
  2. 3. what happens when a sun dies
  3. 4. chemical element of atomic number 1
  4. 9. a sun
  5. 10. becomes a protostar
  6. 11. a star