The Planets

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Across
  1. 3. The second smallest planet in the Solar System and fourth from the Sun
  2. 5. The smallest planet
  3. 6. The smallest planet that is also closest to the sun
  4. 8. The second planet from the sun
  5. 10. This is extremely hot, it is the star at the centre of the solar system
  6. 13. A rock, or Minor Planet orbiting the Sun
  7. 14. Another word for spin
  8. 15. To move in a circle on a central axis
  9. 17. The sixth planet from the Sun and the second largest planet in the Solar System
  10. 18. A group of stars, gas and dust held together by gravity
  11. 20. The planet we live on
Down
  1. 1. The eighth and farthest planet from the Sun in the Solar System
  2. 2. Seen in the night sky, it is Earths natural satellite
  3. 4. The gases surrounding the earth or another planet
  4. 7. When our view of one object in the sky is blocked by either another object or the Earth's shadow
  5. 9. The largest Planet in the Solar System
  6. 11. The seventh planet from the Sun
  7. 12. The force that attracts things to the centre of the Earth
  8. 16. A large bowl-shaped cavity/hole caused by a meteorite
  9. 19. The Earth rotates on this