| A | B |
| system | a group of objects that interact |
| biosphere | all living organisms on Earth in the air, on the land, and in the waters; one of the 4 parts of the Earth system |
| map scale | comparison of distance on a map with actual distance on what the map represents such as Earth's surface |
| latitude | distance in degrees north or south from the equator |
| projection | representation of Earth's curved surface on a flat map |
| elevation | measure of how high something is above a reference point such as sea level |
| contour interval | the difference in elevation from one contour line to the next |
| false-color image | it assigns different colors to different types of radiation coming from an object to highlight its features |
| atmosphere | outer layer of gases of a large body in space; one of the 4 parts of the Earth system |
| geosphere | one of the 4 parts of the Earth system; features of the Earth's surface and everything below the surface. |
| slope | measure of how steep a landform is |
| remote sensing | method of using scientific equipment to gather information about something from a distance |
| distortion | showing something out of context or how it is in reality |
| hydrosphere | all the water on earth |
| topography | all natural and human-made surface features of a particular place |
| prime meridian | imaginary north-south line that divides the planet into the Eastern and Western Hemisphere |
| map legend | chart that explains the meaning of each symbol used on a map |
| sensor | mechanical or electronic device that receives and responds to a signal, such as light |
| contour line | line on a topographic map that joins points of equal elevation |
| longitude | distance in degree east or west of the prime meridian. |