Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 06
Fall 2009
Department
of Earth Science |Northeastern
Illinois University
Daily
Objectives #22
(November
19, 2009)
Dr. Sanders
By the end of today's class, you should be able to do the following:
TOPOGRAPHIC MAPS
w
Using a topographic map, determine the difference between steep and gentle
slopes.
w
Using a topographic map, find the elevation of a point.
w
Determine the
direction a stream flows based on a topographic map.
w
Using a USGS topographic map, identify these
landforms/features:
○
hill
○ valley
○ closed depression (basin)
○
stream
○ intermittent stream
○ lake
w
Using the scale on a topographic map, find
the distance between two points.
| Using the topographic quadrangles provided, find at least one place that illustrates each of the following features. Label and place a sticky note on one map or the other, to indicate the location of each feature. It is necessary to find each feature only once. | |
|
* a steep slope * a closed depression * a round hill top * a ridge (elongated hilltop) * a lake * a benchmark |
* a stream; find two places where contour lines cross the same
stream and put sticky notes on the map to show both places. Tell what
direction the stream is flowing. * a “Gaging Station” along a stream * a forested or undeveloped area (how can you tell?) * an urban area (how can you tell?) |
w Delineate a watershed based on a topographic map.