MAPS

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Earth

Road Map of US

Exit Slip

Using complete sentences, describe 3 ways you can use a map.

**remember to re-write the question to begin your answer***

Projections

• All maps are projections of the Earth’s curved surface onto a flat page.

Distortion

• Because maps represent a curved, 3-dimensional, surface on a flat, 2-dimensional surface, there is always distortion: all maps are wrong in some way!

• Distortion: Inaccuracies on all maps because of projection.

• Maps can distort the size, shape, direction, and distance.

• “All maps lie flat and all flat maps lie.”

Conic Projection

Azimuthal Projection

5 Things on a Map (B.O.L.T.S)

• B. Borders• O. Orientation• L. Legend• T. title• S. scale

Borders

Orientation

Compass Rose

• A design on a map that shows direction: north, east, south and west. North is always at the top of the compass rose; south is always at the bottom.

Legend

Map Legend

• The legend will tell what type of information is found on a map and the meaning of symbols.

• Symbols can change from map to map. There are both line symbols and point symbols. Font can also be used to distinguish important information on a map.

• Maps can have more than one legend.

Title

• Put a title on your map

Scale

Longitude/Latitude

• Latitudes: Lines that run east and west around the Earth. These lines measure distances north and south of the Equator.

• Longitudes: Lines that run from the North Pole to the South Pole. These lines measure distances east and west of the Prime Meridian.

• *** When determining a point of intersection, latitude is read always first.

Equator/Prime Meridian

• Equator: An imaginary line drawn halfway between the North & South poles. (0° latitude)

• Prime Meridian: An imaginary line drawn from the North Pole to the South Pole. (0° longitude)

Tropics• Two lines of latitude are

known as tropics: The Tropic of Cancer (23.5°N) and the Tropic of Capricorn. (23.5°S)

• The area is know for a relatively constant amount of sunlight throughout the year.

• Usually countries in the tropics have a wet season and a dry season.

Latitude and Longitude Practice

Time zones

• Time zones created when rail travel allowed people to move very fast from one place to another.

• United States creates 4 time zones in 1883

• Great Britain helps create world time zones in 1884.

Time zones continued

• As a general rule, there is a different time zone for every 15° Longitude

• China has only one time zone!

• How do time zones affect our lives every day?

International Date Line

• Through the Pacific runs the international date line

• Here the date changes depending on direction of travel.

• If you fly from Hawaii to Australia, you’ll be a day ahead of when you left.

LOCATIONWhere are we?

• Absolute Location– A latitude and longitude

(global location) or a street address (local location).

– Paris France is 48o North Latitude and 2o East Longitude.

– The White House is located at 1600 Pennsylvania Ave.

• Relative Location– Described by landmarks,

time, direction or distance. From one place to another.

– Go 1 mile west on main street and turn left for 1 block.

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