| A | B |
| Asia | largest continent in area and population |
| North America | 3rd largest continent |
| Atlantic Ocean | 2nd largest ocean |
| Pacific Ocean | largest ocean |
| Indian Ocean | warmest ocean |
| valley | low place between mountains |
| plateau | broad, flat-topped highland that may have a gorge or a canyon |
| estuary | mouth of a river where the ocean tide meets the river current |
| isthmus | narrow strip of land which connects land masses |
| plains | flat or rolling land with few changes in elevation |
| mesa | flat top and extremely steep sides, usually round or oblong |
| reservoir | aritificial lake caused by a dammed river |
| Lake Superior | world's largest fresh water lake |
| Israel | nation formed in 1948 |
| weather | refers to the cahnges that take place in the lower part of the earth's atmosphere |
| agrarian | nation whose income is mostly derived from agriculture |
| Eurasia | large landmass that contains Asia and Europe |
| Iraq | the ruins of ancient Babylon found here |
| Himalayas | highest mountain range in Asia |
| Australia | smallest continent in area |