Our solar system

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Across
  1. 1. It's the hottest planet. It has mountains and volcanoes and it's the same size as the Earth.
  2. 6. The biggest planet of them all
  3. 7. A giant ball of gas on fire
  4. 8. A mean of transport to go to space
  5. 11. A rock that falls down to the Earth
  6. 12. It's the seventh planet and the coldest planet of them all. It's the only planet lying on it's side.
Down
  1. 2. It's the furthest planet of them all. It's dark, cold and windy in there.
  2. 3. A machine that orbits the Sun
  3. 4. The red planet. It has deserts and two moons.
  4. 5. The planet where we live.
  5. 9. It's the closest planet to the Sun and the smallest planet of them all.
  6. 10. A person who goes to space.
  7. 13. It's got lots of rings made of dust, rocks and other things.