Nebula, Prostar and Main Sequence

123456789
Across
  1. 3. ____ stars are 7,500–10,000 degrees.
  2. 5. What creates the energy found in stars?
  3. 8. Most stars are _____ _____ star.
  4. 9. What stars burn hydrogen quickly and have short lives
Down
  1. 1. What is the name for life before a star?
  2. 2. What type of star is the Sun?
  3. 4. The ______ stage is a ball of gas and dust that is pulled together by gravity.
  4. 6. What stars are class M stars?
  5. 7. Our Sun has been a main sequence star for about ___ billion years.