Antarctica

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Across
  1. 1. a sheet of floating ice
  2. 3. an electrical phenomenon of streamers of red or green light in the sky, especially near the poles. In the south it is called aurora australis or Southern Lights.
  3. 4. a floating sheet of ice attached to land
  4. 5. a group of penguins in the water
  5. 6. a floating piece of ice detached from an iceberg
  6. 8. unrestrained or uninhibited
Down
  1. 1. loose crystals that join
  2. 2. killer whale
  3. 7. to cut off