1. Learning Objectives
1).You will understand the concepts of latitude and longitude.
2). You will be able to pinpoint locations given specific values of latitude and longitude.

2. Latitude VS Longitude Parallel Lines to the Equator (00 latitude)
Memory Tips
Parallel Lines to the Equator (00 latitude)
Run East and West
Horizontal
Used to locate points North and South of the equator
0-900
Latitude sounds like ladder..
You use latitude to higher and lower locations on Earth just like ladder steps.
The 1st part of the word latitude sounds like flat and flat runs horizontal or East and West.

3. Latitude VS Longitude
Longitude
Run East and West of Prime Meridian
(00 longitude)
Used to locate points East and West.
0-1800
Lines on a globe that run North and South are long and that coincides with LONGitude.
There is an N in LONGitude and an N in North.

4. Latitude VS Longitude Cont…
Important Markers
Measured in
Degree
Minute
60 in every degree
Seconds
60 in every minute
Completely Parallel Lines
00 Latitude = Equator
22.50 North Latitude= Tropic of Cancer
22.50 South Latitude = Tropic of Capricorn

5. Latitude VS Longitude Cont…
Measured in
Degree
Minute
60 in every degree
Seconds
60 in every minute
Extend Pole to Pole
Semicircles
Converge at Poles
Diverge at Equator

6. Latitude VS Longitude Cont…
Important Longitude Lines
00 Longitude = Prime Meridian
1800 Longitude = IDL
International Date Line
Where all time zones meet
Significant time difference across the line

7. Time Zones = Latitude Lines
15 Degrees Longitude
Doesn’t separate main cities/places
International Date Line

8. Contour Line Discussion and Map construction 9/24/2012
1). You will understand what a contour line is.
2). You will understand when and how to use a depression contour.
3). You will understand the rules of Contour Mapping.

9. Should Your Maps All Look The Same?
Why or Why Not?
What could have caused them to look so differently?

10. Contour Lines On Topographic Maps At Equal Elevations
When Do You Draw Them?
What should contour lines look like?
On Topographic Maps
At Equal Elevations
If an area is flat, then contour lines should be nicely spaced.
If an area is steep, then contour lines should be very close together.
Beginning to create smaller circles.
Contour Interval: Constant Increase and/or Decrease in Elevation Between Contour Lines

11. Could you tell that your volcano model had a concave top?
Why or Why Not?
How could we fix this?
Depression contours
Hachures: Lines coming off depression contours at a right angle
Always Point Downhill

12. Contour lines can tell us….
Gradient
We can use labeled contour lines to calculate gradient.
Change in elevation between a and b/Distance between a and b

13. Contour Mapping Rules
1). Contour Points Connect Lines of Equal Elevation.
Every point on a line is at the exact same elevation.
2). Contour Lines Never Intersect or Cross.
3). Contour Lines Never Split or Divide.
4). Contour Lines Always Separate Points of Higher Elevation from Lower Elevation.
5).Contour Lines Always Close to Form an Irregular Circle.

14. Contour Mapping Rules Continued
6). The Closer Contour Lines are Together….The Steeper the Slope
7). A Hill is Represented by a Series of Closed Contours.
8). Depression Contours are Indicated by Hachure Marks.

15. Raft
Role: Contractor, Geologist, Hiker, Runner, Skier, Mountain Biker, Home-Owner, City Planner, Mayor, and a Person on a Camping Trip.
Audience: Contractor, Geologist, Hiker, Skier, Mountain Biker, Home-Owner, City Planner, Mayor, and a Person on a Camping Trip.
Format: Letter, Cartoon/Comic, Rap, Poem, Essay, Advertisement, Advice Column, Application, Resume, Invitation, News Story.
Topic: Contour Mapping Rules

16. Quick Review Get out a half sheet of paper
Answer these quick questions:
1). What is a contour line?
2). What is a depression contour?
3). How can you tell a depression contour apart from a normal contour line?
4). What is a contour interval?

17. The Electromagnetic Spectrum 9/19/2011
1). Students will understand the concepts of wavelength and frequency.
2). Students will understand the relationship between wavelength and frequency.
3). Students will understand the basic components of the electromagnetic spectrum.

18. Energy Moves In Waves!! Types of Waves: EMS (Electromagnetic Spectrum)
Waves Move…Particles Do Not
Types of Waves:
EMS (Electromagnetic Spectrum)
Radio-Gamma
Low-High Energy

19. Wavelength and frequency
When the wave repeats itself
Crest to Crest
Trough to Trough
Speed at which waves repeat themselves
How many in a second
Inversely related to wavelength.

20. Technology Uses 24 satellites Transmits microwaves Sonar: Sound Waves
GPS
Sonar and Satellites
Uses 24 satellites
Transmits microwaves
Sonar: Sound Waves
Landsat Satellite:
Visible Light and Infrared
Movement of plates, rivers, earthquakes, and pollution.
Topex/Poseidon Satellite:
Maps of ocean floors