Earth and Space Science

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Across
  1. 3. This planet is between Saturn and Neptune
  2. 6. It takes 28 days to go round the earth
  3. 8. The largest planet
  4. 10. The force that pulls towards the centre of Earth
  5. 12. The blue planet. It has water on it
  6. 14. This is the next planet out from the sun after earth
  7. 17. The general name for someone who studies space
  8. 19. The 8th planet from the sun. It spins in a different direction from the other planets.
  9. 20. The time it takes for the earth to spin round once on its axis
Down
  1. 1. This used to be called a planet but is not now
  2. 2. Which planet has a thick carbon dioxide atmosphere and sulphuric acid clouds
  3. 4. A giant planet with rings
  4. 5. A sun seen from a great distance
  5. 7. The path of a planet round the sun
  6. 9. On earth the sun appears to rise in the ___
  7. 11. The time it takes for the earth to go round the sun
  8. 13. An imaginary line through the Earth which runs from pole to pole
  9. 15. The centre of our solar system
  10. 16. On earth, the sun appears to set in the ____
  11. 18. The planet nearest the sun