THE UNIVERSE

123456
Across
  1. 1. It revolves around the Earth.
  2. 3. The star that provides light to the Earth.
  3. 5. The air around the Earth.
Down
  1. 2. The time when it is dark.
  2. 3. A bright point in the sky.
  3. 4. The time when it is light outside.
  4. 6. The planet where we live.