The planets

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Across
  1. 3. what planet in the solar system is farthest from the sun?
  2. 4. system ? Uranus the chemical element uranium was named after what planets?
  3. 5. what planet is nicknamed the red planet ? Earth what is the third planet
  4. 7. the sun ,?
Down
  1. 1. what is the hottest planet in the solar system?
  2. 2. what is the largest planet in the solar system?
  3. 5. what is the smallest planet in the solar system ?
  4. 6. the sixth planet from the sun features an extension