Universe Test Review Crossword Puzzle

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Across
  1. 2. Last stages of a massive star; leaving either a Neutron star or a black hole
  2. 4. Distance from any point on a wave to a corresponding point on the next wave
  3. 6. Shape of the Milky Way Galaxy
  4. 8. The name of the arm in the spiral galaxy that our solar system is located
  5. 10. HR Diagrams show the relationship between luminosity and ______________
  6. 11. The universe is still expanding outward from the after effects of the Big Bang; true or false?
  7. 17. Galaxies that have no defined shape
  8. 19. Color of lowest temperature stars
  9. 21. When a light source is moving towards the observer
  10. 22. Large cloud of cosmic dust and gas; where new stars are formed
  11. 23. System of stars and other matter; held together by gravity
  12. 25. The galaxy in which our solar system is located in
  13. 27. When a light source is moving away from the observer
Down
  1. 1. Background radiation that was leftover from the Big Bang
  2. 3. Type of stars that expand as they run out of fuel; high-mass stars
  3. 5. Galaxies that have a circular or oval shape
  4. 6. Medium-sized star that Earth revolves around; part of Main Sequence stars
  5. 7. Formed when a nebula has enough gas and dust and collapses
  6. 9. White dwarfs are considered this because they have burned off the last of their fuel
  7. 12. Space and everything in it
  8. 13. Number of times a wave passes a certain point in a given time
  9. 14. Color of highest temperature stars
  10. 15. The diagram used to plot stars based on their luminosity and their surface temperature
  11. 16. The distance that a star’s light can travel in one year
  12. 18. Direction that objects are moving as a result of the Big Bang Theory
  13. 20. If something appears bluer in our galaxy, the direction it is moving compared to the observer
  14. 24. The pitch that is associated with blueshift
  15. 26. The pitch that is associated with redshift