Warm-up What are Earth’s 4 “spheres?”

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Presentation transcript:

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?

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

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

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 Elevation Distance Direction Slope Contour Line: 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 Type & Age of Rocks 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)