Download Con-Seal - Weathering/Erosion/Deposition 2

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win
Ques. #1
What is the predominant agent of
erosion in deserts?
Wind
Back
Ans.
Ques. #2
A river dissolves salt. Is this a
chemical or a physical change AND
explain why.
Physical. The salt has not been chemically
changed. When the water evaporates the
salt remains.
Ans.
Back
Ques. #3
What formed this
valley AND explain
how you know?
Formed by glaciers – It’s U-shaped
Ans.
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Ques. #4
What name is given
to the area indicated
by the arrow?
A (river) DELTA
Ans.
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Ques. #5
The tear-drop
shaped feature
in the photo is
composed of
what kind of
sediment?
UNSORTED glacial till
Ans.
Back
Ques. #6
What kind of particles might be
found in suspension in zone D?
Back
Colloids
Ans.
Ques. #7
Explain the pattern of
deposition (in water)
shown in the diagram.
The smallest beads were the most dense and
the largest were the least dense.
Ans.
Back
Ques. #8
Indicate three ways in which rocks
are changed by long periods of
stream abrasion.
They get rounder and smoother and smaller.
Ans.
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Ques. #9
When dropped
into water, which
particle would
require the least
time to settle?
Particle D
Ans.
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Ques. #10
During which season of the year
would a stream in upstate NY be
carrying the greatest total amount
of sediment AND explain WHY?
Spring. Because melting snow increases stream volume
which increases stream velocity. The faster a stream is
moving the more material it can carry.
Ans.
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Ques. #11
At what point in the stream (give letter A - D and depth 0.1 to
0.9) is deposition most likely to occur?
Location A at a depth of 0.5m
Ans.
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Ques. #12
What term refers to
the dark lines in the
middle and along the
sides of this glacier ?
These are MORAINES
Ans.
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Ques. #13
Describe how and
where this pattern of
deposition may have
occurred?
Where: In a lake. How: Deposition from streams carrying
sediment into the lake repeating in an annual pattern.
Ans.
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Ques. #14
What is the force driving all erosion?
Gravity
Ans.
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Ques. #15
What would be the
predominant agent of
erosion for a climate
that had a temperature
of 25 degrees C and
30mm of annual
precipitation.
In an arid climate wind is the most important agent.
Ans.
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Ques. #16
Which agent of
erosion is
responsible for
depositing this
soil?
Glaciers - the particles are unsorted
Ans.
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Ques. #17
When a piece of limestone is
placed in acid, bubbles of
carbon dioxide are produced?
This is an example of what
process?
Chemical weathering
Ans.
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Ques. #18
What do you know
about the age and the
slope of this river.
It is very old and the slope is nearly flat.
Ans.
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Ques. #19
What agent of erosion
has affected this area
and what evidence do
you see that supports
your conclusion?
Glaciers - parallel grooves in the rock
Ans.
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Ques. #20
A soil composed of silicate particles
and organic material is found on top
of limestone (carbonate) bedrock.
What kind of soil is this?
A transported soil because its silicate composition
is unrelated to the carbonate bedrock beneath it.
Ans.
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Ques. #21
What kinds of particles will be
carried by a stream moving at
5 cm/sec?
Sand AND everything smaller
Ans.
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Ques. #22
Name 3 characteristics of particles
that can affect the rate at which
they settle in still water.
Size, shape, density
Ans.
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Ques. #23
Which agent of
erosion is
responsible for
eroding the valley
shown in the
diagram?
V-shaped valley cut by running water
Ans.
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Ques. #24
What kind of energy is constantly
decreasing during the process of
erosion?
Potential energy
Ans.
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Ques. #25
Name 3 different
ways this equipment could be
modified in order
to increase the
rate of water
discharge.
1) Increase the slope
2) Increase the amount of water in the trough
3) Narrow the outlet
Ans.
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Ques. #26
Name four clues that would lead
you to believe an area had been
subject to glacial erosion.
1) Parallel grooves in rocks
2) Narrow, deep lakes
3) U-shaped valleys
4) Unsorted sediments
5) Scratched & polished rock
6) Erratics
Ans.
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Ques. #27
At which location can the stream carry the largest particles?
Location D. Steepest slope means fastest rate of flow.
Ans.
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Ques. #28
At which location
would a particle
in this stream
have the
greatest
potential energy.
Location A (The higher the elevation, the greater the Pe)
Ans.
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Ques. #29
What term refers to rocks bouncing
along the bottom of a stream?
Saltation
Ans.
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Ques. #30
What is another term for physical
weathering?
Mechanical weathering
Ans.
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YOU’RE A
WINNER!
Erratics and kettle lakes are
signs of glacier (glacial) erosion