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As you look through the following slides please:
Write one sentence for EACH slide that covers the Main Idea and Supporting details for that slide
Your task:
Topographic map: a map showing the surface features of an area
Gives information aboutElevationReliefSlope
What is a topographic map?
To decide where to build new stores, houses, schools or factories
To plan bicycle trips or hikes
Some Uses of Topographic Maps
The USGS (U.S. Geological Survey)The USGS has made about 57,000
that cover all of the United States except parts of Alaska!
Who makes topographic maps?
Contour Lines: Used to represent elevation, relief, and slope on topographic maps
All points with the same elevation are connected with a contour line
Contour Lines
Contour Interval- The difference in elevation between two contour lines that are next to one another.
Contour Interval
Global Positioning System: a method of finding latitude, longitude, and elevation of points on Earth’s surface using satellites
GPS
Click on the link that follows to see topographic maps in action!
://www.youtube.com/watch?v=xgrOaWKyv8w
Reading a Topographic Map