Year 7 Solar System One

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Across
  1. 3. The planet that is famous for its rings (6)
  2. 5. The ancient idea that the Earth is at the centre of the Universe (10,5)
  3. 7. Name for the (almost) circular path that a planet takes around its star (5)
  4. 9. The side of the Earth facing away from the Sun has... (5)
  5. 10. An imaginary line that goes around the middle of the Earth which divides the world into the Northern and Southern hemispheres (7)
  6. 12. It's nicknamed 'the red planet' (4)
  7. 13. An imaginary line about which an object rotates/turns (4)
  8. 15. It's the name for the part of the day when the Sun appears at its highest point in the sky (6)
  9. 16. The biggest planet in our solar system (7)
Down
  1. 1. The surname of the scientist who first came up with the heliocentric model (10)
  2. 2. The _______ a planet is from its star, the slower it will orbit (7)
  3. 4. The idea that the Sun is at the centre of the solar system (12,5)
  4. 6. Our planet!
  5. 8. The planet closest to the Sun (7)
  6. 11. The closer a planet is to its star, the _______ it will orbit (6)
  7. 14. The 24 hours it takes the Earth to rotate on its axis, (1,3)