THE EIGHT PLANETS

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Across
  1. 2. There are black ... on the Sun
  2. 4. Too small to be a planet
  3. 5. One of the colours of the Sun
  4. 6. The satellite of the Earth
  5. 7. This planet has a ring
Down
  1. 1. The fifth planet
  2. 3. The star at the centre of the Solar System
  3. 4. There are eight ... in the Solar System