The Solar System Crossword

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Across
  1. 1. Large chunks of rock and metal that orbit between Mars and Jupiter.
  2. 4. Known as 'shooting stars'.
  3. 5. The gas that gives Uranus and Neptune their blue-green colour.
  4. 6. The material of Mars' surface.
  5. 9. The largest planet in our Solar System.
  6. 10. The hottest planet in our Solar System.
Down
  1. 2. The path a planet takes around the Sun.
  2. 3. The shape of The Milky Way Galaxy.
  3. 4. The smallest planet in our Solar System.
  4. 5. Fragments of asteroids.
  5. 7. The planet with the shortest day.
  6. 8. Orbit in the Kuiper Belt and Oort Cloud.