Delilah Ayan period 1 topic 11 think tac toe crossword

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Across
  1. 4. cloud of dust and gas
  2. 5. distance light travels
  3. 7. transfer of heat through circulation
  4. 10. simulation of real system
  5. 11. information acquired by observation
  6. 14. dark spots in the sun
  7. 15. frozen mass that orbits the sun
Down
  1. 1. large system of stars
  2. 2. planet
  3. 3. distance between two objects or places
  4. 6. personal belief or a judgment
  5. 8. _____astronomical units between earth and the sun
  6. 9. eight planets and the sun
  7. 12. earth's natural satellite
  8. 13. act of inferring