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Ch.1 Mapping Earth's
surface 1-2
| Word | Definition |
|---|---|
| Topography | The shape of the land determined by elevation, relief, and landforms. |
| elevation | height above sea level |
| relief | the difference in elevation between the highest and lowest parts of an area |
| landform | a feature of topography formed by the processes that shape Earth's surface. |
| 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 group of mountains that are closely related in shape, structure, area, and age |
| plateau | a large landform that has high elevation and a more or less level surface. |
| landform region | a large area of land where the topography is made up mainly of one type of landform |
| globe | a sphere that represents Earth's entire surface |
| map | a flat model of all or part of Earth's surface as seen from above |
| map projection | a framework of lines that helps to transfer points on Earth's surface onto a flatmap |
| symbol | on a map, a picture used by mapmakers to stand for features on Earth's surface |
| key | a list of the symbols used on a map and their meanings |
| scale | used to relate distance on a map or globe to distance on Earth's surface |
| degree | a unit used to measure distances around a circle. one degree equals 1/360 of a full circle |
| equator | an imaginary line that circles earth halfway between the north and south poles |
| hemisphere | one half of the sphere that makes up Earth's surface |
| prime meridian | The line that makes a half circle from the north pole to the south pole and that passes through greenwich,england |
| latitude | The distance in degrees north or south of the equator |
| longitude | The distance in degrees east or west of the prime meridian. |
| surveying | The process of gathering data for a map by using instruments and the principles of geometry to determine distance and elevations. |
| digitizing | converting information to numbers for use by a computer |
| pixel | One bit of a digitized image, often appearing as a small square or dot. |
| aerial photograph | a photo taken by cameras mounted in airplanes. |
| satellite image | A picture of the land surface based on computer data collected from satellites. |
| Global Positioning System | A navigation system that uses satellite signals to locate a radio receiver on Earth's surface. |
| Geographic Information System | A system of computer hardware and software used to produce interactive maps. |
Created by:
abelan001
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