| A | B |
| geography | the study of the earth and its people |
| landforms | natural features of the earth such as mountains, valleys, etc. |
| pangaea | name of the large landmass when all the continents were connected |
| fault | crack in the earth's crust |
| elevation | height of land above or below sea level |
| ozone layer | layer in the atmosphere that protects all living things from harmful sun rays |
| crevasse | deep crack in the ice |
| ice shelf | thick piece of ice attached to the coast |
| iceberg | huge piece of floating ice in colder ocean waters |
| krill | tiny, hard shell ocean animals eaten by whales and others |
| ice floe | a huge, usually flat, layer of floating ice |
| expedition | to take a trip |
| calving | the act of ice falling off glaciers into the water |
| Antarctic Circle | 66 1/2 degrees South Latitude |
| frostbite | the freezing of body parts due to very cold temperatures |
| Liberty | freedom |
| Endowed | supplied, provided |
| Unalienable rights | human rights; rights that can't be taken away |
| Truth | facts |
| Self-evident | unquestionable |
| Mt. Erebus | active volcano on the continent of Antarctica |
| growlers | low, greenish icebergs that are hard to see by ships |
| Arctic Tern | only bird that travels from the Arctic (North Pole) to the Antarctic (South Pole) |
| McMurdo | largest research station on Antarctica; owned by the United States |
| prohibited | not allowed by law |
| port | a city or town along the coast where ships come in and out |
| Canberra | National capital of Australia |
| bight | bend in a coastline that makes a bay |
| monolith | large block of stone standing by itself |
| Outback | dry, inland region of Australia |
| bush | rural areas of Australia |
| boomerang | flat, bent, wooden tool that hunters throw to stun their prey, comes back to you when you throw it |
| cartographer | person who makes maps |
| Great Barrier Reef | coral reef off Australia's northeast coast |
| marsupial | mammals that carry their young in a pouch |