Words from space and from earth

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Across
  1. 4. nature, everything around us
  2. 6. water
  3. 8. Person who goes to space
  4. 10. learn about planets
  5. 12. water
  6. 13. make the screen work again
Down
  1. 1. a game with a racket and shuttlecock
  2. 2. we live in the 21st ...
  3. 3. synonym for rocket
  4. 5. a ball is ...
  5. 7. go down the ...
  6. 9. people in space
  7. 11. a game with a small ball and a stick