space kfv

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Across
  1. 3. stars are composed of helium and ...
  2. 4. a star is composed of
  3. 5. when atoms dont move, they are hot or cold
  4. 8. what is in the center of a solar system
  5. 11. a star which explode become a
  6. 13. our galaxy
  7. 14. set of galaxies
  8. 15. time to form a star (in millions years)
  9. 17. fusion create light and …
  10. 18. molecular cloud is composed of gas and ...
  11. 19. set of solar systems
Down
  1. 1. where born a star
  2. 2. what is on the center of a galaxy
  3. 6. a star works by...
  4. 7. it was a planet in our solar system, now it's a dwarf planet
  5. 9. what is the next step after a white dwarf
  6. 10. bigger planet of solar system
  7. 12. force that collapse different body, also the name of a film
  8. 16. pillars of creation is a ...