As we go through the power point, please do the following:

Match your cards.

Take notes in your science notebook.

Label your map.

Map Notes

topography The study…

The study of the shapes and features of the Earth’s surface.

Topography

Shows the three dimensional shape and elevations of an area of land in two dimensions

Topographic Map

Height above sea level

Elevation

Line that connects places on a topographic map that are all at the same elevation (eventually a closed loop)Label the contour lines on your map.

Contour line

Contour line

The vertical difference in elevation between neighboring contour linesLabel the contour line interval on your

map.

Contour Line Interval

contour line interval

The difference between the highest elevation point and the lowest elevation point on a map

Relief

200 300

400

Units = feetWhat is the relief of this map? What is the contour interval of this map?

Contour lines are closely spaced on steep slopes.

Contour lines are widely spaced on gentle slopes.

Topographic Map Rules

Where a contour line crosses a stream or valley, the contour line bends to form a “V” that points upstream. In the upstream direction, the successive contours represent higher elevations.

Topographic Map Rules

Contour lines near the top of a hill form closed, circular shapes. The top of the hill is higher than the highest closed contour line.

Topographic Map Rules

Depressions without outlets are shown by closed hatched contours. The contour lines have short lines on the inside that are pointing down slope. The bottom of the depression is lower than the lowest closed contour line.

Topographic Map Rules

A map made of pictures of the Earth taken from a satellite orbiting the Earth.

Satellite Map