PARTS OF A MAP

The map key (or legend) tells us what the symbols mean. The map title gives the topic or subject of the map.  The  cardinal directions on the compass rose orient the reader.  The scale allows the user to calculate distances between points.  

legend

 

compass rose

 

 

   

FINDING ABSOLUTE LOCATION USING THE GLOBAL GRID

 

  ZeroDegreesLnL  

The imaginary lines of latitude and longitude cross the globe and create a coordinate grid we can use to locate specific places on Earth.  A grid is a network of intersecting vertical and horizontal lines that are equidistant.

 

 

Latitude lines are also known as parallels.  They run from the Equator (0 degrees) to the poles (90 degrees N or S).

Longitude lines run north to south.  They intersect at the poles and are measured east  or west from the Prime Meridian (0 degrees)  to the International Date Line (180 degrees).

 

The Equator divides the Earth into two hemispheres: Northern and Southern.  North America is in the Northern hemisphere.

The Prime Meridian divides the Earth into two hemispheres as well: Eastern and Western.