| A | B |
| Plains | large, flat areas, often found in the interior regions of continents |
| Plateau | flat, raised areas of land made up of nearly horizontal rocks that have been uplifted by forces within the Earth |
| Folded Mountains | rock layers that are folded up like a rug that has been pushed against a wall |
| Upwarped Mountains | form when blocks of Earth's crust are pushed up by forces inside the Earth |
| Fault-block mountains | made of huge, tilted blocks of rock that are separated from surrounding rocks by faults |
| Volcanic Mountains | form when molten material reaches the surface through a weak area in the Earth's crust |
| Equator | an imaginary line around the Earth exactly halfway between the north and south poles |
| Latitude | lines running parallel to the equator also called parallels. distance measured in degrees either north or south of the equator |
| prime meridian | reference point for lines of longitude. Represents 0 degrees longitude |
| Longitude | refers to distances in degrees east or west of the prime meridian |
| International Date Line | the transition for calendar days. |
| Time Zones | The United States has six different and it is measured by tracking the Earth's movement in relation to the Sun |