Formation of Solar System - Initial Star Formation

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Across
  1. 6. end of high mass star's life
  2. 7. end of low/medium mass star's life
  3. 8. step one in formation of stars
  4. 9. end of very high mass star
Down
  1. 1. (high mass stars) step 2
  2. 2. (low/medium mass stars) step 2
  3. 3. (high) step 3
  4. 4. (low/med)step 3
  5. 5. start of all stars