| A | B |
|---|
| Antarctica | South Pole |
| glacier | a river of ice |
| iceberg | a floating piece of ice that breaks off from a glacier |
| penguins | black and white flightless birds of the polar regions |
| auroras | strange northern lights in the Alaskan night sky |
| tundra | frozen Arctic soil |
| Arctic Ocean | very cold ocean located in the Arctic or North Pole Circle |
| blubber | layers of insulating fat |
| migrate | to move from one location to another |
| camouflage | an animal's protective coloration |
| molting | shedding one's coat or skin |
| hibernation | spend the winter resting or sleeping |
| endangered | might become extinct |
| pollution | made dirty or harmful |
| habitat | a place where plants and animals live |
