Space Scavenger Hunt Crossword Puzzle

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Across
  1. 2. A _____ is an area where people live but near an area where there are no people.
  2. 3. _____ protects the Earth from comets and asteroids.
  3. 6. The Space Shuttle is a type of _____.
  4. 7. _____ is the coldest planet in the Solar System.
  5. 9. The Space Shuttle and the ISS both _____ the Earth.
  6. 10. _____'s atmosphere is acidic and thick.
Down
  1. 1. _____ is the planet with the most moons in the Solar System.
  2. 4. Earth and Mars are both _____.
  3. 5. A _____ is a giant cloud of dust and gas in space.
  4. 8. _____ are designed to do things that are too dangerous for astronauts to do.