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ch 1 8th

QuestionAnswer
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 earths 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 of mainly of one type of landform.
globe A sphere that represents earths entire surface.
map A flat model of all or part of earths surface as seen from above.
map projection A framework of lines that helps to transfer points on earths surface onto a flat map.
symbol On a map, a picture used by mapmakers to stand for features on earths surface.
key A list of the symbols used on a map and their meanings.
scale Used to relate distances on a map or globe to distance on earths surface.
degree A unit used to measure distance 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 a sphere that makes ups earths 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 distances 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 dot or square.
aerial photograph A photograph taken by cameras mounted in airplanes.
satellite image A picture of the land surface based on computer data collected from satellites
global positioning system 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
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 other
index contour On a topographic map, a heavier contour line that is labeled with elevation of that contour line.
Created by: skovalchik002
 

 



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