Transcript Con-Seal - Weathering/Erosion/Deposition 2

From RegentsEarth.com
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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.
Back
Ques. #4
What name is given
to the area indicated
by the arrow?
A (river) DELTA
Ans.
Back
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.
Back
Ques. #9
When dropped
into water, which
particle would
require the least
time to settle?
Particle D
Ans.
Back
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.
Back
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.
Back
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.
Back
Ques. #14
What is the force driving all erosion?
Gravity
Ans.
Back
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.
Back
Ques. #16
Which agent of
erosion is
responsible for
depositing this
soil?
Glaciers - the particles are unsorted
Ans.
Back
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.
Back
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.
Back
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.
Back
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.
Back
Ques. #21
What kinds of particles will be
carried by a stream moving at
5 cm/sec?
Sand AND everything smaller
Ans.
Back
Ques. #22
Name 3 characteristics of particles
that can affect the rate at which
they settle in still water.
Size, shape, density
Ans.
Back
Ques. #23
Which agent of
erosion is
responsible for
eroding the valley
shown in the
diagram?
V-shaped valley cut by running water
Ans.
Back
Ques. #24
What kind of energy is constantly
decreasing during the process of
erosion?
Potential energy
Ans.
Back
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.
Back
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.
Back
Ques. #27
At which location can the stream carry the largest particles?
Location D. Steepest slope means fastest rate of flow.
Ans.
Back
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.
Back
Ques. #29
What term refers to rocks bouncing
along the bottom of a stream?
Saltation
Ans.
Back
Ques. #30
What is another term for physical
weathering?
Mechanical weathering
Ans.
Back
YOU’RE A
WINNER!
Erratics and kettle lakes are
signs of glacier (glacial) erosion