The solar system

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Across
  1. 1. A blue planet that has water
  2. 2. The centre of the solar system
  3. 4. The sun sets in the
  4. 6. It takes 24 ? for the earth to rotate once on its axis
  5. 7. The planet nearest the sun
Down
  1. 1. The sun rises in the
  2. 3. The eighth planet from the sun
  3. 5. The Earth spins on its