1. MAPS

2. Types of Maps Another word for a Map: Globe, Model, Chart, and Imagery
Different Types of Maps:
Bathymetric = Map of the Ocean Floor
Geologic = Map of Rocks or Soils on the Land Surface
Topographic = Map of the Elevation of the land Surface
Weather = Map of Temperatures, Storms, Air pressure

3. How Maps are Used Navigating on Land or in the Ocean
Calculating Distance, Elevation, Weather
Determining Boarders, Property Lines etc..
Military Strategies (War, Special Ops)
Tourism (Vacations)
NASA
Countless other uses!

4. How To Read Maps

5. How is this picture like a map?

6. Map Scales Maps are drawn to scale.
The scale of a map indicates how the map’s features compare in size with Earth’s surface.
Scale indicates the size of the areas depicted on the map.

7. Compass Rose S Tells you where North, South East and West are.
Clockwise… Never Eat Soggy Waffles (N, E, S, W) E W S

8. Map Scales: Ratio Factor
This Map Scale has a Ratio scale of 1:20,000 (1=20,000 or 1/20,000)…
This could mean:1”=20,000”, 1cm=20,000cm, 1’=20,000’, or any other unit of measure stated on a given map. As long as each unit on both sides of the
This means for every 1 inch measured on the Map equals 20,000 inches measured on the actual ground!

9. Map Scales: Graphic
A Graphic scale shows you the distance an area on the map represents.
Most map scales are used together.

10. What does it mean if the map scale is 1:100,000
What does it mean if the map scale is 1:100,000? Would this map be bigger or smaller than a map scale of 1:50,000? Would the 1:100,000 map scale be zoomed in or out?

11. Answer
1 inch on the map is 100,000 inches on the ground. The map would be smaller (zoomed out) because it covers such a large area, and the ground features would be much smaller too!!

12. Types of maps

13. Mercator Projection Maps take a round globe and place it on a flat surface. This distorts the features size

14. Conic Projection Project points and lines from a globe onto a cone
Conic Projection Project points and lines from a globe onto a cone. These are the most accurate maps

15. Topographic Map Show the natural and man-made surface Elevations and Features. Contour lines on topographic maps show slope and elevation.

16. GPS Global Positioning System is a constellation of satellites that orbit Earth and send signals that can be picked up by a user’s receiver to determine extremely accurate positions on Earth. This position is given in Latitude and Longitude.

17. GPS Position is given in Latitude and Longitude

18. Latitude Lines Horizontal lines that run East to West
Latitude Lines Horizontal lines that run East to West. Each degree tells you how far north or south of the equator something is. The Equator is the center latitude line on the Earth at 0 degrees, halfway between the North and South Poles.

19. Important Latitude Lines
Arctic Circle (66.5 degrees North)
Tropic of Cancer (23.5 degrees North)
Equator (0 degrees)
Tropic of Capricorn (23.5 degrees South)
Antarctic Circle (66.5 degrees South)

20. Longitude Lines
Vertical lines that run North to South around the globe. Longitude lines get closer to each other as they reach the poles.
Each degree tells you how far east and west you are from the Prime Meridian (0 degrees longitude.)

21. Important Longitude Lines
The Prime Meridian is 0 degrees longitude
The International dateline is 180 degrees longitude.
It takes the Earth 1 hr to rotate 15 degrees of longitude.

22. International Dateline
The day changes from one day to the next as you cross the international dateline add a day going west and subtract a day going east
For example If you are on the east of the international dateline on Sunday and you cross it going west it would be Monday

23. Questions
What lines meet at 0 degrees lat. and 0 degrees long.?
If you are west of the international dateline on Saturday, what day would it be east of the international dateline?

24. Answers
1. Equator meets the prime meridian at 0 degrees latitude and 0 degrees longitude.
2. Friday