SPACED OUT

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Across
  1. 2. The planet between Mercury and Earth
  2. 5. What all the planets revolve around
  3. 7. The number of planets in our solar system
  4. 12. The name of a gaseous planet
  5. 13. The name of the phase when the entire side of the moon is lit
  6. 15. Number of hours it takes for Earth to complete one rotation
  7. 17. The planet that is closest to the sun
Down
  1. 1. This planet is also called 'The Red' planet
  2. 3. The only planet known to support life
  3. 4. When the moon is more than half lit (Starts with G)
  4. 6. The name of the phase when the entire side of the moon is in shadow
  5. 8. The name of a dwarf planet
  6. 9. The largest planet in our solar system
  7. 10. The name of our galaxy
  8. 11. What rocks that float around in space are called
  9. 14. The number of different seasons in a year
  10. 16. The change in water levels on Earth
  11. 17. The Earth's natural satellite