Gradient and River Flow Practice
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School
SUNY Buffalo State College *
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Course
503
Subject
Geography
Date
Dec 6, 2023
Type
Pages
6
Uploaded by GeneralUniverse3446
1.
Base your answer to the following question on the topographic map in your answer booklet and on
your knowledge of Earth science. Points
A, B
,
C
, and
D
represent locations on Earth's surface.
Elevations are measured in meters.
Calculate the gradient between points
C
and
D
. Label your answer with the correct units.
Name: _____________________________________________ Date: _________________ Block: ______ WKST #
Unit 1: Earth's Dimensions Gradient/River Flow
GRADIENT
SHOW ALL YOUR WORK BELOW
What direction is Carol Creek flowing?
What direction is Kim Brook flowing?
Draw the 200 meter contour line on the
bottom of the map.
2.
Base your answer to the following question on the passage, map, and field map below, and on your
knowledge of Earth science. The map shows the location of Crater Lake in Oregon in the western
United States. The field map shows lake depths and some isolines in Crater Lake recorded in meters.
Line
AB
and line
CD
are reference lines. Letter
X
represents a location on the lake bottom.
Crater Lake
Crater Lake is the deepest lake in the United States. The lake formed in the crater at the top of
volcanic Mount Mazama after it exploded in a violent eruption approximately 7700 years ago. The
rim of the crater is approximately 2300 meters (7500 feet) above sea level and is mostly composed
of the rock andesite. The average yearly air temperature at the lake is 38°F, and snowfall often
occurs from October through June. Hydrothermal activity (heating of the water) is ongoing under
the lake, indicating that this region is still volcanically active.
Determine the gradient, in meters per kilometer, between points
C
and
D
.
SHOW ALL YOUR WORK BELOW
3.
Base your answer to the following question on the topographic map below and on your knowledge of
Earth science. Points
X
,
Y
, and
Z
indicate surface locations. Elevations are shown in meters.
Calculate the gradient of Otter Creek, in meters per kilometer, between points
Y
and
Z
.
SHOW ALL YOUR WORK BELOW
What direction is Otter Creek flowing?
What direction is Starry Creek flowing?
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4.
Base your answer to the following question on the topographic map below and on your knowledge of
Earth science. Point
A
represents a location on Earth's surface. Lines
BC
and
XY
are reference lines on
the map. Points
D, E, F,
and
G
represent locations along Coe Creek. Elevations are shown in feet.
Calculate the gradient along line
XY
. Label your answer with the correct units.
SHOW ALL YOUR WORK BELOW
River Flow Direction
Base your answers to question 1 on the map below which shows elevations, measured in feet, of a
number of points in a certain geographic region.
1.
Which direction is the Elma Creek flowing? Provide two pieces of evidence of the direction you
chose.
2.
The topographic map below shows elevations in feet.
In which general direction is Elm Brook
flowing?
a)
southwest
b)
southeast
c)
northwest
d)
northeast
3.
The topographic map below shows elevations in meters.
Mill River generally flows toward the
a) southeast
b) southwest
c) northeast
d) northwest
The topographic map below shows elevations in feet. Point A represents a
location on Earth’s
surface. Lines BC and XY are reference lines on the map. Points D, E, F, and G represent locations
along Coe Creek.
4.
What direction is Coe Creek flowing?
5.
Describe how the contour lines indicate that
Coe Creek flows faster between locations D
and E
than between locations F and G.
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