1. Warm-up What are Earth’s 4 “spheres?”
Which spheres does the Biosphere include?
What type of force flattens, or takes away geosphere?
What does the theory of Plate Tectonics explain?

2. “Representing Earth’s Surface”
Chapter 1, Section 3

3. Determining Location Latitude: Longitude:
North or South of the “Equator”
degreeso
Longitude:
East or West of
“Prime Meridian”

4. Global Grid
Locate any place on Earth.

5. Equator:
Divides Earth in two
“Hemispheres”
N↑ & S↓
Prime Meridian & 180º Meridian
←W & E→ “Hemis”

6. Locating Places Using the Grid

7. Maps & Mapping All maps have problems.
too small, too big, or out of place

8. Mercator Projection
Longitude = Parallel
Rectangular
Sailors.

9. Robinson Projection
Accurate distance, size, shape
wrong near edges

10. Conic Projection
Maps of small areas

11. Gnomonic Projection
Shortest distance
Sailors, pilots

12. Topographic Maps Earth’s 3-D surface in 2-D Elevation Distance
Direction
Slope
Contour Line:
Every point on line = same elevation
Contour Interval:
Distance in elevation between “adjacent” contour lines

13. Contour Lines
Close contours = Steep!
Far contours = Gentle

14. Geologic Map
Type & Age of Rocks
Color & Pattern

15. Advanced Technology Google Earth “Mapquest” GPS Satellite Images
“Remote Sensing”
More accurate & precise analysis of Earth’s physical properties

16. Assignment Read Chapter 1, Section 3 (pg. 11-17)
Do Section 1.3 Assessment #1-7 (pg. 17)