Frozen Lakes

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Across
  1. 2. Often happens in winter
  2. 3. Antarctic direction
  3. 7. Water in solid state
  4. 8. Lights seen in polar skies
  5. 9. Used for building snowmen
Down
  1. 1. Direction of polar regions
  2. 2. Precipitation in winter
  3. 4. Winter footwear
  4. 5. Found in icy waters
  5. 6. Opposite of cold