solar system crossword

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Across
  1. 5. first animal/dog in space
  2. 7. first astronaut in space
  3. 10. named after the roman god of Thieves
  4. 11. NASA's second human spaceflight program
  5. 13. when they hit the surface of a planet or a moon it is considered a ...
  6. 14. about the size of a pebble
  7. 15. an animal that was sent into space on 9 March 1961
  8. 18. last person to walk on the moon
  9. 21. has 27 moons
  10. 23. neptune’s biggest moon
  11. 24. a minor space object that has entered the Earth's atmosphere
Down
  1. 1. these planets haven’t ¨Cleared their neighborhood¨
  2. 2. became the first American woman in space aboard the space shuttle
  3. 3. the only planet with life
  4. 4. has the big red spot
  5. 6. coldest planet in the solar system
  6. 7. the first mission to land a man on the moon
  7. 8. larger than meteoroids
  8. 9. a program to see if humans could function in space.
  9. 12. Jupiter’s volcanic moon
  10. 16. has over 30 rings
  11. 17. the second person to walk on the Moon
  12. 19. Jupiter's moon that is very close to Earth's moon
  13. 20. a monkey who successfully was sent to space
  14. 22. Earth’s sister planet
  15. 24. the second smallest planet in our solar system
  16. 25. It is the only moon in the entire solar system with a dense atmosphere