Solar System KS3

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Across
  1. 1. The name given to our galaxy (5,3)
  2. 6. The 9th planet which is now a drawf planet
  3. 8. A natural satellite orbiting a planet (4)
  4. 9. Our planet (5)
  5. 10. A large rocky boulder orbiting the sun
  6. 14. An object slightly smaller than a planet (5,6)
  7. 16. Planet named after the Greek God of the Sea (7)
  8. 17. The name for the group of things surrounding the sun(5,6)
  9. 19. The gas which makes up the sun (8)
Down
  1. 2. A layer of gas around a planet (10)
  2. 3. A dusty ice boulder orbiting the sun with a long tail (5)
  3. 4. A rocky planet with a hot atmosphere of sulfuric acid (5)
  4. 5. The force which keeps things in orbit (7)
  5. 7. A device used to study the stars(9)
  6. 11. The largest planet in the solar system (7)
  7. 12. A rocky planet which is red in colour (4)
  8. 13. Name for the 4 large planets made of a gas (3,5)
  9. 15. A bright firey streak of rock burning through the sky (6)
  10. 18. A region between earth and Jupiter with lots of rocks (8,4)