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Erosion Study Guide- Mass Movement, Glaciers, and Wind
SECTION 1
WORD BANK: (questions 1- 23) Words may be used more than once
Water, creep, deposition, abrasion, plucking, larger, dessert pavement, continental glacier, smaller,
slump, mudflow, erosion, sediment, deflation, valley glacier, surface materials, till, mass movement,
never-ending, gravity, slow, thawing, sand dune, landslide, ice, air.
Agents of Erosion:
1. Weathering, erosion, and
act together in a cycle that wears down and
builds up the Earth’s surface.
2.
which consists of pieces of rock or remains of plants and animals, is
produced by weathering erosion.
3. Wind and water are agents of
that move sediment from one location to
another.
4. The cycle of erosion and deposition are
.
Mass Movement:
5. The force that moves sediment in a landslide or mudflow is
.
6. Any one of several processes that move sediments downhill is called
.
7. A mass movement called
occurs when sediment suddenly slips downhill in one
large mass.
8. A
occurs when rock and soil slide quickly down a steep slope.
9. A rapid downhill movement of a mixture of
, rock, and soil is called a mudflow.
10.
Results from freezing and thawing of water in cracked layers beneath the
soil.
11. A creep is a very
downhill movement or rock and soil.
Wind:
12. The main ways that the wind erodes the land is by the process of
and
.
13. When wind removes
it is called deflation.
14. The particles of sediment can get carried through the
, while medium-sized
particles skip or bounce and
particles slide or roll.
15.
Can occur when wind blows smaller sediments away and
leaves behind rock materials that are too heavy to be moved.
16. Loess is sediment made up of fine particles of silt that have been deposited far from their source
by
.
17.
Is a deposit of wind-blown sand.
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Glaciers:
18. A kind of glacier called a
forms when ice and snow build up in a
mountain valley.
19.
Is a glacier that covers much of a continent or large
island.
20. The process in which a glacier loosens and picks up rock as it moves is called
.
21. The mixture of sediments deposited directly by a glacier is called
.
22. Valley Glaciers are
than Continental Glaciers.
23. The two processes by which glaciers erodes land are
and
.
SECTION 2:
Wearing Down and Building Up
24. What are the five forces that cause erosion?
25. Material moved by erosion is called what?
Mass Movement
26. What is the most destructive kind of mass movement?
27. What are the 4 kinds of mass movement?
28. What causes mass movement?
29. Describe: landslide, mudflow, slump, creep
Glaciers
30. Give a good scientific definition for a glacier.
31. What is the difference between a continental and a valley glacier?
32. What are ice ages?
33. What makes a valley glacier move?
34. How does abrasion of bedrock by a glacier occur?
35. When does a glacier deposit sediment it is carrying?
36. What shape of a valley does a valley glacier make?
Wind
37. When does wind-carried sediment fall to the ground?