| A | B |
|---|
| topography | The shape of the land determined by elevation, relief, and landforms. |
| Global Positioning System | A method of finding latitude and longitude using satellites. |
| relief | The difference in elevation between the highest and lowest parts of an area. |
| landform | A feature of topography formed by the processess that shape Earth's surface. |
| landform region | A large area of land whre the topography is similar. |
| plain | A landform made up of flat or gently rolling land with low relief. |
| mountain | A landform with high elevation and high relief. |
| mountain range | A series of mountains that have the same general shape and structure. |
| plateau | A landform that has high elevation and a more or less level surface. |
| lithosphere | Earth's solid rock outer layer. |
| atmosphere | The mixture of gases that surrounds Earth |
| hydrosphere | Earth's water and ice. |
| biosphere | All living things. |
| globe | A sphere that represents Earth's surface. |
| longitude | The distance in degrees east or west of the prime meridian. |
| latitude | The distance in degrees north or south of the equator. |
| hemisphere | One half of the sphere that makes up Earth's surface. |
| degree | A unit used to measure distances around a circle. |
| symbols | On a map, pictures used by mapmakers to stand for features on Earth's surface. |
| scale | Used to compare distance on a map or globe to distance on Earth's surface. |
| key | A list of the symbols used on a map. |
| prime meridian | The line that makes a half circle from the North Plie to the South Pole. |
| equator | An imaginary line that circles Earth halfway between the North and South poles. |
| topographic map | A map that shows the surface features of an area. |
| contour line | A line on a topographic map that connects points of equal elevation. |
| contour interval | The difference in elevation from one contour line to the next. |
| elevation | Height above sea level. |
