Kelsi-May crossword puzzle

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Across
  1. 4. prominence large,bright, loop shaped feature
  2. 5. extended atmosphere of a star
  3. 6. spot or patch appearing from time to time
  4. 8. zone layers in a stars interior
  5. 10. nuclear reaction which nuclei fuse
  6. 12. brief eruption of intense radiation
Down
  1. 1. primary nuclear fusion process
  2. 2. particle with a mass close to zero
  3. 3. visible, lowest layer of the suns atmosphere
  4. 7. microscopic needle-like structural elements
  5. 9. zone outermost layer of a stars interior
  6. 11. thin,reddish layer of the suns atmosphere