L atitude and Longitude

1. Latitude and Longitude

2. Typical Graph Graphs may be divided into quadrants with the X and Y values being either positive (+) or negative (-) depending on the quadrant in which they are located. Y (-X,+Y) (+X,+Y) X Now let’s apply the same principles to latitude and longitude. (-X,-Y) (+X,-Y)

3. On the map horizontal lines are lines of latitude and.... vertical lines are lines of longitude. The X axis is the equator and the Y axis which runs through Greenwich, England is the Prime Meridian. Equator Prime Meridian

4. Any location north of the equator is a NORTH LATITUDE OR Is considered the Northern Hemisphere

5. Any location south of the equator is a SOUTH LATITUDE or is considered the Southern Hemisphere

6. Any location west of the prime meridian is a WEST LONGITUDE or is considered the Western Hemisphere

7. Any location east of the prime meridian is an EAST LONGITUDE Or is considered the Eastern Hemisphere

8. We can divide the Earth into quadrants: NE where all latitudes are NORTH and all longitudes are EAST.

9. We can divide the Earth into quadrants: SE where all latitudes are SOUTH and all longitudes are EAST.

10. We can divide the Earth into quadrants: SW where all latitudes are SOUTH and all longitudes are WEST.

11. We can divide the Earth into quadrants: NW where all latitudes are NORTH and all longitudes are WEST. Notice that EVERY point in the United States will have a NORTH latitude and a WEST longitude since we are in the NW quadrant.

12. 90°N What is latitude? Latitude is the distance from the equator along the Y axis. It is expressed in degrees. The north pole is 90° N The south pole is 90° S And remember that the equator is 0° latitude. 90°S 0° What is the maximum possible latitude on Earth? 90° is maximum. You could be at 90°N or 90°S but there is no greater latitude on Earth (or anywhere else)

13. What is longitude? Longitude is the distance from the prime meridian along the X axis. Just like latitude, longitude is measured in degrees. The prime meridian is 0° And if you go half way around the world you will reach the 180° longitude line. 180° 0° 180° Understand that there aren’t two 180° lines. On this FLAT map it just looks that way. It’s the SAME line. What is the maximum possible longitude on Earth? 180° is the maximum possible longitude on Earth.

14. Practice • As a class: • Find the Continent and country or Ocean for each point: • A. 30N 45W • B. 30S 75E • C. 30S 135E • D. 40N 90W

16. To find the exact point when it is in between the given lines on the map do an estimate. • If the point is half way between 10N and 20N then the closest estimate would be 15N • If the point is closer to one line or the other then estimate 3 or 7ish • So the point is closer to the 20N than the 10N estimate 17N • As a class: • A. 35N 100E • B. 17S 47E • C. 55S 68W

18. On my own – identify the name of the city at this point: • A. 55N 38E • B. 34N 97W • C. 22S 43W • D. 7S 38E

19. I360globe: • At this point there is a country that we can’t travel to; • Write a short paragraph identifying the country and why it sucks that we can’t go there based any of the selections

20. Here are some things to remember: • Latitude is written first and mustalways include N (north) • or S (south) of the equator. > Longitude is written next and must always include E (east) or W (west) of the prime meridian. > As with anything else you learn you will get better with practice......... SO PRACTICE, PRACTICE, PRACTICE!