The Solar System

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Across
  1. 2. The furthest planet from the Sun?
  2. 5. The closest planet to the Sun?
  3. 7. the number of planets in our solar sytem?
  4. 9. the sun is a huge ball of hot g___
  5. 10. This is at the centre of the solar system (s___)
  6. 11. The planets r_____ around the sun
  7. 14. Energy from the sun is called s____ energy
  8. 16. Clouds of dust and ice (O___)
  9. 17. the largest Asteroid (C___)
  10. 18. The outer 4 planets are called gas g____
Down
  1. 1. We see c____ as they pass through our solar system
  2. 3. Without the suns energy there would be no l____ on earth
  3. 4. the sun's energy comes from n___ fusion reactions
  4. 6. the colour of the sun
  5. 8. Hundreds of large rocks found between mars and Jupiter
  6. 12. the sun is a type of s______
  7. 13. The names for the planets are G___ from ancient Greece or Rome.
  8. 15. The 4 closest planets are called r_____ planets