The Solar System

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Across
  1. 2. Mercury is ________ to the Sun than the Earth.
  2. 3. The temperature in the Sun is ________ than in the planets.
  3. 4. Pluto is ________ than real planets.
  4. 6. The Sun is ________ than the planets.
Down
  1. 1. The Earth is _______ from the Sun than Venus.
  2. 5. The temperature is _______ on the surface of the Sun than at the centre.