BBT

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Across
  1. 4. it comes before a red supergiant
  2. 5. shift galaxies - they are farther away
  3. 8. - the force used to pull everything down
  4. 10. bang theory - the theory of how the universe formed to be
  5. 11. - it comes before low mass star and high mass
  6. 12. shift galaxies- light wave squashed
  7. 14. microwave background - Evidence of big bang
  8. 16. there’s multiple galaxies
  9. 18. - universe is filled with them
  10. 19. need about 75%
Down
  1. 1. hole - nucleus
  2. 2. - need about 25%
  3. 3. - still expanding
  4. 4. law - a statement that is created after a number of observations have taken place
  5. 6. bang - happened about 13.8 billion years ago
  6. 7. - what everything is made of
  7. 9. - something that has not been proven to be true
  8. 13. - brightness of a star
  9. 15. rate - the rate at which galaxies move away from each other
  10. 17. dwarfs - very hot but not bright