universe vocab

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Across
  1. 1. what everything is made of
  2. 5. from earth to the solar system to the milky way to the _________
  3. 7. ______ jets of gas
  4. 8. similar to density
  5. 9. makes up molecules
Down
  1. 2. A huge cosmic explosion
  2. 3. gases, liquids, and solids have different amounts of these
  3. 4. hottest planet in the solar system
  4. 6. endless