Exploring Earth’s Surface

Exploring Earth’s Surface

Chapter 1Section 4

Standard6.2 Topography is

reshaped by the weathering of rock and soil and by the transportation and deposition of sediment.

Anticipatory Set Color the Contour map that

was given to you according to the directions on the bottom.

Language of the Discipline

Topographical Maps Contour Line Contour interval Index contour

Mapping (Input) Mapmakers use contour lines to represent

elevation, relief, and slope on topographical maps

Contour line- connects points of equal elevation

Contour interval- the change in elevation from contour line to contour line

Look at page 29 Index contours- labeled with the elevation in

round units. How any meters above sea level

Mapping (Input)

Topographic Maps (Input)

Used to identify landforms To read a topographic map, may must

familiarize yourself with the map’s scale and symbols and interpret the map’s contour lines

Topographic Maps (Input)

Scales, Symbols, Interpreting Contour

Lines Scales- use large scale maps

Close up view of Earth’s surface Symbols used to show houses and other small features

Symbols What symbols would you use to represent a forest,

campground, swamp, or school? Interpreting Contour lines

Find the elevation of a feature, begin at the index contour (heavier line), then count the number of contour lines up or down to the feature.

Interpreting Contour Lines

Closely spaced lines- steep slopes Widely spaced lines- gentle slopes/flatter

areas It also helps to show ridges and valleys. (V

shaped) If they point downhill it is showing a ridge If they point uphill it is showing a valley A stream will flow towards to the opening

at the end of the V.

Checking For Understanding

Topographical maps show what?

Surface features of an area

Checking For Understanding

Elevation, relief, and slope on a topographic map are shown using symbols called?

Contour lines

Checking For Understanding

The change in elevation from contour line to contour line is called what?

Contour interval

GP and IP Guided Practice

#1-3 Stop!!! You must have a stamp to keep

going!

Independent Practice #4-6

Homework #7-end