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Maps and Map Skills
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Kinds of Maps General Reference Maps
Provide the reader general information about an area or place. Thematic Maps Provide more specific information about an area or place than general reference maps.
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General reference
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Thematic Map
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Maps are important tools for geographers.
A globe is a better model of Earth than a map, but a globe has disadvantages that a map does not have
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Reading Maps Map Parts Title Legend or Key Grid System Direction Scale
Map orientation – This has to do with direction
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Compass Title Scale
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Grid System
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Large Scale and Small Scale Maps
A large-scale map shows a small area such as a neighborhood street in great detail. A small-scale map shows a large area such as a country or a continent in comparatively lesser detail. Small Area = Large Scale Large Area = Small Scale
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Small Area = Large Scale Large Area = Small Scale
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Compass Is used to orient a map toward north
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Latitude and Longitude
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Latitude The set of lines crossing the Earth’s surface horizontally, Circling east and west. Each line of latitude is always an equal distance from the next. They are also known as parallels. All latitude lines are parallel to each other.
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Longitude A set of lines that run vertically along Earth’s surface from the North Pole to the South Pole
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Global Grid When lines of latitude and longitude cross a grid is formed. The grid is used to located certain places on earth
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Each line has an Identifying number called degrees, or parts of a circle. (410 )
Minutes 10’ Seconds 10”
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Direction The other part needed to locate places on Earth is direction. Cardinal directions are: north, south, east, and west. Intermediate directions are: northeast, southeast, northwest, and southwest. They are located midway between the cardinal directions.
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Using Latitude & Longitude to Locate Places
Lines of latitude are numbered based on how far north or south they are from an imaginary line called the equator This line circles the Earth exactly halfway between the NP and SP. The equator’s latitude degree is 00. There are 90 degrees between it and each of the poles.
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This line is called the Prime Meridian.
Lines of longitude are numbered based on how far east or west they are from another imaginary line. This line is called the Prime Meridian. Prime Meridian’s longitude degree is 00. There are 1800 of longitude east of the PM and 1800 degrees west of it. Area east of the PM is known as “east” longitude. (1200E) Area west of the PM is known as “west” longitude. (1200W)
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Hemispheres The earth can be divided into halves. Each of these halves is called a hemisphere.
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Hemispheres at the Equator
The ½ north of the equator is called the northern hemisphere The ½ south of the equator is called the southern hemisphere
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Making Maps Gathering Information Problem of Distortion Map Properties
Map Projections Cartographers (Mapmakers)
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