Science Crossword Puzzle

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Across
  1. 3. ____ are visible only at night besides the sun
  2. 7. An __________ is a person who studies stars planets etc.
  3. 8. The ____ comes out at night
  4. 9. The___ is the closest star to our planet
Down
  1. 1. a _____________ is a pattern of stars that make something
  2. 2. _______ is what brings us down when we jump
  3. 4. The _____ is the third closest planet to the sun
  4. 5. The opposite of ____ is up
  5. 6. The earth _______ making day and night
  6. 10. The opposite of __ is down