Across
- 3. clouds of gas in space
- 4. stars that fuse hydrogen atoms into helium atoms in their cores.
- 6. when outward pressure is equal to the inward pressure
- 7. a massive sized star after its life in the main sequence
Down
- 1. The way stars form, grow, develop, and expire
- 2. the factor that determines the length of a star’s life
- 5. an average sized star after its life in the main sequence