Download Our Solar System

Warm-up
1. What are Earth’s 4 “spheres?”
2. Which spheres does the Biosphere
include?
3. What type of force flattens, or takes
away geosphere?
4. What does the theory of Plate Tectonics
explain?
“Representing Earth’s Surface”
Chapter 1, Section 3
Determining Location
Latitude:
• North or South of the “Equator”
• degreeso
Longitude:
• East or West of
“Prime Meridian”
• degreeso
Global Grid
Locate any place on Earth.
Equator:
• Divides Earth in two
• “Hemispheres”
• N↑ & S↓
Prime Meridian & 180º
Meridian
• ←W & E→ “Hemis”
Locating Places Using the Grid
Maps & Mapping
• All maps have problems.
• too small, too big, or out of place
Mercator Projection
• Longitude = Parallel
• Rectangular
• Sailors.
Robinson Projection
• Accurate distance, size, shape
• wrong near edges
Conic Projection
• Maps of small areas
Gnomonic Projection
• Shortest distance
• Sailors, pilots
Topographic Maps
Earth’s 3-D surface in 2-D
1. Elevation
2. Distance
3. Direction
4. Slope
Contour Line:
• Elevation
• Every point on line = same elevation
Contour Interval:
• Distance in elevation between “adjacent” contour
lines
Contour Lines
Close contours = Steep!
Far contours = Gentle
Geologic
Map
1. Type & Age of Rocks
2. Color & Pattern
Advanced Technology
−Google Earth
−“Mapquest”
−GPS
−Satellite Images
−“Remote Sensing”
• More accurate & precise analysis of
Earth’s physical properties
Assignment
• Read Chapter 1, Section 3 (pg. 11-17)
• Do Section 1.3 Assessment #1-7 (pg. 17)