Solar system

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Across
  1. 3. What do we call a natural satellite of a planet?
  2. 4. How many planets are there in the solar system?
  3. 5. Which is the largest planet in the solar system?
  4. 6. Which planet has beautiful rings around it?
Down
  1. 1. Which is the smallest planet in the solar system?
  2. 2. Which star is at the center of our solar system?
  3. 3. Which planet is known as the Red Planet?
  4. 4. Which planet is known as the Blue Planet?