Crossword - 21

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Across
  1. 2. Which is the smallest planet in our solar system?
  2. 4. Which planet in our Solar System has thousands of spectacular rings around it?
  3. 6. Which is the hottest planet in our solar system?
Down
  1. 1. What is the name of the biggest planet in our solar system?
  2. 3. Which planet in our solar system is known as the Red Planet?
  3. 5. What is the name of the largest moon of Saturn?