| A | B |
| interior | the inner part or inside of something |
| turn into | changes from one thing into another |
| aborigine | a member of the group of people who lived in Australia from the earliest of times |
| build | to make something especially a building or something large |
| choose | to decide which one of a number of things, possibilities, or people that you want because it is the best or most appropriate |
| expedition | a long and carefully organized trip, especially to dangerous or unfamiliar places |
| supplies | food, clothes and things necessary for daily life, especially for a group of people over a period of time |
| hemisphere | one of the halves of the Earth, especially the northern or southern parts above and below the equator |
| orders | a command given by someone in authority |
| finally | at last |
| base | to establish or use somewhere as the main place for your work |
| halfway | at the middle point in space or time between two points |
| search party | a group of people looking for someone or something hard to find |
| lonely | unhappy because you are alone and feel that you do not have anyone to talk to, or making you feel this way |
| hero | someone who is admired for doing something extremely brave |