The Solar System

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Across
  1. 3. The second planet from the Sun
  2. 4. system The sun, the planets and the collection of stars
  3. 6. A small piece of debris in space
  4. 9. The furthest planet from the Sun
  5. 11. This covers 70% of the Earth's surface
  6. 12. The force that holds you down on the Earth
Down
  1. 1. The length of time it takes for the Earth to orbit the Sun
  2. 2. The largest planet in the solar system
  3. 4. The biggest star in the solar system
  4. 5. The layer of gas around a planet
  5. 7. A planet that is now called a 'dwarf' planet
  6. 8. The closest planet to the Sun
  7. 10. Nicknamed 'the Red Planet'