Earth and Solar System

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Across
  1. 2. Smallest planet
  2. 4. Burning balls of fire in space
  3. 6. Largest planet
  4. 7. This is the brightest object we see in the night sky
Down
  1. 1. The full moon day is also called as
  2. 3. The planet in which we live
  3. 4. The only star that can be seen during the day
  4. 5. The large dark area beyond the sky