| Term | Definition |
| hemisphere | one of the halves of the earth as divided by the equator or the prime meridian. The earth is divided into the northern and southern hemisphere by the equator. The earth is divided into the eastern and western hemisphere by the prime meridian. |
| equator | an imaginary line (running east and west) halfway between the North and South poles which divides Earth into a northern and southern hemisphere |
| prime meridian | an imaginary line (running north and south) which divides Earth into an eastern and western hemisphere |
| longitude | lines on a map going north and south (vertical) 0-180 degrees |
| latitude | lines on a map going east and west (horizontal) 0-90 degrees |
| globe | a small model of Earth |
| Torrid Zone | the land and water between the Tropic of Cancer and the Tropic of Capricorn (low latitudes). It is warm all year in this region except in the high mountains |
| Temperate Zone | between the Tropic of Cancer and the Arctic Circle in the north and between the Tropic of Capricorn and the Antarctic Circle in the south. The areas within these middle latitudes have four seasons. |
| Frigid Zone | Areas north of the Arctic Circle and south of the Antarctic Circle (high latitudes). These regions can have days without darkness in the summer and days without sunlight in the winter |
| continent | a large land area on Earth |