Incredible Ice

1234567
Across
  1. 2. ... Pole
  2. 4. a black and white sea bird that swims but cannot fly
  3. 5. polar ...
  4. 6. a large mass of ice that moves very slowly
Down
  1. 1. ride a ..., kind of scooter
  2. 3. a marine mammal that eats fish and lives near the sea
  3. 4. North ...
  4. 7. water that has frozen