Unit 7 Vocab Crossword

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Across
  1. 5. all matter in space
  2. 6. clues or information that help support answers or theories
  3. 7. a force that pulls two objects together
  4. 9. an object in which nothing can escape because of it's density
  5. 11. a lot of stars, dust, and gases held together by gravity
  6. 12. Planets and objects that revolve around a star
  7. 13. a bunch of gas and dust in space
  8. 14. a flat galaxy containing older stars
Down
  1. 1. theories that are formed to prove facts
  2. 2. the distance light travels in a year
  3. 3. big explosion of a star
  4. 4. spiral galaxy in which our Solar System is located in
  5. 8. average distance between Earth and Sun
  6. 10. a type of galaxy that has arms and has a bulge in the center