THE UNIVERSE

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Across
  1. 3. The planet where we live.
  2. 5. The time when it is dark.
  3. 6. A bright point in the sky.
Down
  1. 1. The time when it is light outside.
  2. 2. The air around the Earth.
  3. 4. It revolves around the Earth.
  4. 6. The star that provides light to the Earth.