maps ***. earth road map of us
TRANSCRIPT
MAPS
***
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.
You are Here