manzword

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Across
  1. 2. if it was further from the sum it would be too ..
  2. 5. stop moving
  3. 6. a strong hard building material made with gravel
  4. 10. it is 9.8N on our planet
  5. 11. a flash of light
  6. 15. how many planets there are in our solar sistem
  7. 17. the name of the protagonist
  8. 18. the universe is 13.7... years old
  9. 20. if it was smaller and gravity was weaker, it wouldn't hold our ..
  10. 21. if we are too close to it we die
Down
  1. 1. we can have the dinner in the garden if it is fine
  2. 3. if the students leave it at home they can't do the version
  3. 4. if there isn't we can't live
  4. 7. if there isn't we can't have out seasons
  5. 8. an abjective to describe the solar radiations
  6. 9. if you do this in that society you are considered a fool
  7. 12. if there were no water on the earth we would have ....
  8. 13. the smaller planets can be made of it
  9. 14. if it was bigger, the gravity would be much stronger
  10. 16. the earth rotates on his ..
  11. 19. neptune consist of ...