Planets

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Across
  1. 3. What is the third planet from the sun?
  2. 4. What is the smallest planet in our solar system
  3. 5. What keeps our planet warm?
Down
  1. 1. What shines at night with the moon?
  2. 2. What is the hottest planet in our solar system?
  3. 4. What is the fourth planet from the sun?