UNIT 12

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Across
  1. 3. there are 8 of them in our system
  2. 5. people who go to space
  3. 8. flying in the sky
  4. 9. something unknown
  5. 11. our home
  6. 13. pulls us towards earth
  7. 15. red planet
  8. 17. biggest rings
  9. 18. study of stars
  10. 20. the sun and other nearby planets
Down
  1. 1. find new things
  2. 2. you can live there
  3. 4. biggest planet
  4. 6. furthest spaceship from earth
  5. 7. going in a circle
  6. 10. planet with diamonds
  7. 12. the milky way
  8. 14. planet that smells like farts
  9. 16. number 1
  10. 19. smallest planet