The Planets crossword

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Across
  1. 3. Mercury is the .... planet in our solar system
  2. 5. The hottest planet in our solar system
  3. 8. The "red planet"
  4. 9. The largest planet in our solar system
  5. 10. Not including dwarf planets, there are how many planets?
  6. 13. The only place man has visited besides earth
  7. 14. At the centre of our universe is a large star called what?
  8. 15. what colour is the sun?
  9. 17. Our solar system is found in a galaxy called the milky what?
  10. 19. We live on this planet
Down
  1. 1. Planet earth's years is 365 what?
  2. 2. Coldest planet in our solar syatem
  3. 3. Meteoroids are often incorrectly called .... stars
  4. 4. The time taken for a planet to make a complete orbit of the sun
  5. 6. The planet famous for its rings
  6. 7. Planet closest to the sun
  7. 11. Jupiter, Saturn, Uranus and Neptune are better known as the what planets?
  8. 12. Mercury, Venus, Earth and Mars are better known as the what planets?
  9. 16. The planets do this around the sun
  10. 18. Planet starting with a P