1. Map Skills Review Latitude and Longitude

2. Latitude- sometimes called parallels
Vocabulary
Latitude- sometimes called parallels
Longitude- sometimes called meridians

3. Degrees- distance used to measure between parallels and meridians
Vocabulary
Degrees- distance used to measure between parallels and meridians
Equator- divides the earth into the Northern and Southern Hemispheres

4. Vocabulary cont.
Prime Meridian- divides the earth into the Eastern and Western Hemispheres

5. Vocabulary cont.
Absolute Location- when a line of latitude and a line of longitude intersect

6. Grid System- the intersection of the lines on the map.
Vocabulary cont.
Grid System- the intersection of the lines on the map.

7. Video

8. Where are we?
In Geography location is determined by using a Grid system created by lines of Latitude and Longitude that cross each other.

9. Lines of latitude are sometimes called parallels.
These lines never intersect with each other.

10. Lines of latitude go around the earth from east to west.

11. The most famous line of latitude is call the Equator.
Lines of Latitude
The most famous line of latitude is call the Equator.
The Equator is located at 0° degrees.

12. Parallels/ Latitude
Parallels or lines of latitude circle the earth from east to west, but are used to measure north and south.

13. Other Lines of Latitude

14. Lines of Longitude are sometimes called meridians.
Lines of Longitude go around the earth from north to south.

15. The most famous line of Longitude is the Prime Meridian.
Lines of Longitude
The most famous line of Longitude is the Prime Meridian.
The Prime Meridian is located at 0° degrees.

16. Longitude/ Meridian Lines of longitude/
Meridians circle the earth from North to south, but measure East and West.

17. Other Lines of Longitude

18. Grid system
When lines of latitude cross lines of longitude they create a grid. This grid allows us to find specific locations on earth.

19. Putting It All Together
When a line of latitude and a line of longitude intersect it gives us an absolute location.

20. Putting It All Together
We can use absolute location to find exact places on a map or globe. (ex. cities, mountains, and plateaus)

21. Grid System

22. Find the line of latitude 20 degrees North of the equator.
Hint: latitude lines look like this
Look at a map.
Find the line of latitude 20 degrees North of the equator.

23. Example
If you follow that line all the way across the map you will eventually come to Mexico City. Therefore, we now know the first part of Mexico City’s coordinates are 20 degrees North. So Mexico City is 20 degrees above the equator.

24. Example Now how far is Mexico City from the Prime Meridian?
Find the Prime meridian at 0 degrees longitude
Now determine if Mexico City is to the east or west of the Prime Meridian. (Hint: West is to the left)

25. Now that you have decided that it is to the west, we know Mexico City’s second coordinate will be ___ degrees West.
Find the line of Longitude that is closest to Mexico City. (Hint: the numbers are at the top and bottom of the page)

26. Answer
If you found the 100 degree line of longitude you found the correct answer.
Mexico City can be found on a map or globe at 20 degrees North of the equator, and 100 degrees West of the Prime meridian

27. Practice
Find the coordinates of the following places on the map . Remember to follow the curve of the lines!
Buenos Aires
35S, 58W
Sri Lanka
9N, 80E

28. Now you find the place 18N, 120E Manila 41N, 92W Chicago, Illinois
I will give you coordinates and you find the place
18N, 120E
Manila
41N, 92W
Chicago, Illinois

29. Try It On Your Own
Directions: Find a world map in your text book. Give the name of the city that can be found at the following absolute locations.
1. 30°S, 55°W
2. 35°S, 58°W
3. 1°S, 80°W
4. 14°N, 91°W
5. 23°S, 43°W
Answers
1. Porto Alegre
2. Buenos Aires
3. Quito
4. Guatemala City
5. Rio de Janeiro