Unit 4: Topography and Maps

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15 Terms

1

Contour interval

The difference in elevation between one contour line and the next.

<p>The difference in elevation between one contour line and the next.</p>
2

Contour line

A line on a topographic map that connects points of equal elevation.

<p>A line on a topographic map that connects points of equal elevation.</p>
3

Depression contour lines

Have hachure lines or teeth on them and indicate a hole or crater in the Earths surface.

<p>Have hachure lines or teeth on them and indicate a hole or crater in the Earths surface.</p>
4

Elevation

Height above sea level.

<p>Height above sea level.</p>
5

Steep slope

When the contour lines on a topographical map are close together.

<p>When the contour lines on a topographical map are close together.</p>
6

Legend/Key

Explains the meaning of the symbols on the map.

<p>Explains the meaning of the symbols on the map.</p>
7

Index contour

On a topographic map, a heavier contour line that is labeled with elevation of that contour line.

<p>On a topographic map, a heavier contour line that is labeled with elevation of that contour line.</p>
8

Sea level

The level of the surface of the ocean.

<p>The level of the surface of the ocean.</p>
9

Topography

A description of surface features of land.

<p>A description of surface features of land.</p>
10

Surface features

Distinctive part, quality, or characteristic of the Earth's outer layer

<p>Distinctive part, quality, or characteristic of the Earth's outer layer</p>
11

Topographic map

A map that shows the surface features of an area.

<p>A map that shows the surface features of an area.</p>
12

Gradient

An incline or slope; the rate of incline

<p>An incline or slope; the rate of incline</p>
13

Latitude

Distance north or south of the equator

<p>Distance north or south of the equator</p>
14

Longitude

Distance east or west of the prime meridian, measured in degrees.

<p>Distance east or west of the prime meridian, measured in degrees.</p>
15

Gentle slope

Shown by widely spaced contour lines.

<p>Shown by widely spaced contour lines.</p>