Space Crossword

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Across
  1. 3. The largest planet in the Solar System.
  2. 7. A layer of gases that surround the Earth.
  3. 8. The force that keeps us standing on the ground and not flying into space.
  4. 10. A planet known for its rings.
  5. 11. The centre of the solar system.
Down
  1. 1. Clouds of dust and gas in space.
  2. 2. The galaxy we live in.
  3. 4. Groups of stars that form patterns in the night sky.
  4. 5. A 'belt' of natural debris between Mars and Jupiter.
  5. 6. A natural satellite orbiting Earth.
  6. 9. Known as the Red planet.