Star Crossword Puzzle

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Across
  1. 3. This color represents "Class O" stars.
  2. 4. Our Sun is this type of star (Average or Massive)
  3. 8. Made of mostly neutrons, the fate of a massive star that cannot become a black hole (2 words)
  4. 10. The phase of a massive star when gases escape and the star begins to swell is called the "Red _________" phase.
  5. 11. Final stage of an average star (2 words)
  6. 14. Type of nebula formed when the escaped gases of an average star begin to ionize and glow.
  7. 15. The doppler effect seen when an object is moving away from Earth (2 words)
Down
  1. 1. What is always trying to "crush" a star?
  2. 2. "Thermonulcear _____________" occurs when the nuclei of two atoms fuse together in the core of a star
  3. 5. The phase of an average star when gases escape and the star begins to swell is called the "Red _________" phase.
  4. 6. The doppler effect seen when an object is moving towards Earth (2 words)
  5. 7. Final stage of the most massive stars, a point of infinite density- even light cannot escape its gravitational pull (2 words)
  6. 9. This cloud of hydrogen gas and dus that all stars come from is known as a "_______ Nebula"
  7. 10. Most of then stars on the HR Diagram are labled as being on the "Main ___________"
  8. 12. This element is the "death sentence" for a massive star!
  9. 13. This color represents "Class M" stars.