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