STARS

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Across
  1. 4. when the supernova core collapse
  2. 5. a big explosion
  3. 6. the youngest stage of a star
  4. 8. when a star starts to lose fuel
  5. 9. a star that is not hot enough to be a star
  6. 10. when a star starts to slowly lose fuel
Down
  1. 1. the first stage of massive star phase
  2. 2. our sun is a ___
  3. 3. if you get stuck in you never get out
  4. 7. a white dwarf that starts to cool down