Life Cycle of a Star

1234567891011121314151617181920
Across
  1. 1. The state reached when both the gas pressure and gravity of a star is equal
  2. 4. The basic element of a star
  3. 7. The phase at which stars live most of their life
  4. 10. Occurs at the end of a low-mass red giant's life
  5. 13. Forms when a supermassive star collapses at the end of its life cycle
  6. 14. A hot ball of gas
  7. 15. What determines what happens to a star after its life in the main sequence
  8. 16. The phase after the main sequence for both low and high mass stars
  9. 17. Forms when low mass star runs out of fuel
  10. 19. Same thing as a giant star only bigger
  11. 20. Large stars that live in the main sequence for 20 million years
Down
  1. 2. Another word for shine, stars do this with light
  2. 3. Lives in the main sequence for 80 to 100 billion years
  3. 5. A medium-sized low-mass star
  4. 6. The last stage of a massive star's life
  5. 8. The core left behind after a supernova
  6. 9. Inside the nebula where gas and dust are pulled together with strong gravitational attractions
  7. 11. The end products of a white dwarf
  8. 12. The birthplace of a star, where interstellar media begins to collect into big clouds
  9. 18. Combines nuclei of hydrogen atoms into helium atoms, energy is released every time two particles fuse