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Chapter 3: Maps

Earth Science Maps

QuestionAnswer
legend list of symbols and their meaning on a map
scale the relationship between distance and actual distance on a map. fractional scale
contour line a line connecting points of equal elevation
topography size and shape of features on earth's surface
elevation height above sea level of a landform
depression an area that is lower in topography than its surroundings
saddle the area of land between two hilltops
remote sensing studying information about a site without actually traveling there
compass a tool that aligns with the geomagnetic north (when in the northern hemisphere)
distortion transferring a curved surface to a flat surface results in this
example of a fractional scale 1/100, 1:100
cartographer the science of map making
field surveys and satellite images (remote sensing) data used to make maps
cardinal directions N S E W
GPS Global Positioning System
groundtruthing When a scientist physically checks the earth for what they saw on a remote image.
Google Earth Coordinates latitude is first and longitude is listed second. These coordinates are always found on the lower part of the page when using Google Earth.
latitude map lines that measure north and south of the equator
longitude map lines that measure east and west of the prime meridian
contour interval the elevation measured between the contour lines on a topographic map
field survey and remote sensing both of these are used to make maps
Equator this is a line of latitude that goes completely around the earth and is known as a great circle
How are latitude and longitude measured? degrees, minutes, and seconds
compass rose indicates cardinal directions N S E W
Created by: Amatulli Science
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