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WorksheetsErosional Forces
Total questions: 32
Worksheet time: 20mins
Name
Class
Date
1.
This is the wearing away and moving of surfaces materials by gravity, water, wind or glaciers.
a)
Loess
b)
Erosion
c)
Glaciers
d)
The environment
2.
Through this process sediments are dropped by erosion agents as they lose energy.
a)
Deposition
b)
Deflation
c)
Eskers
d)
Dust Storms
3.
This occurs as gravity moves materials down a slope as one large mass.
a)
Hurricanes
b)
Mudflows
c)
Abrasions
d)
Mass movement
4.
This the term for when material slips down a curved surface as one large mass.
a)
Dump
b)
Plump
c)
Slump
d)
Frump
5.
Sediments slowly shift downhill in the process of ________.
a)
Scrabble
b)
Lurk
c)
Tiptoe
d)
Creep
6.
____________ and rock slides occur when rocks break off or slip suddenly downhill.
a)
Rock bands
b)
Rockfalls
c)
Rock operas
d)
Rocky roads
7.
A ___________ is a thick mixture of water and sediments flowing downhill.
a)
Creep
b)
Mudflow
c)
Moraine
d)
Root beer float
8.
Sometimes builders and residents make slopes more unstable by making them ___________.
a)
Taller
b)
Smaller
c)
Steeper
d)
Longer
9.
Another source of instability is the removal of _________.
a)
The sun
b)
Slump
c)
People
d)
Vegetation
10.
How do slump and creep differ?
a)
Slump occurs faster
b)
Creep occurs faster
c)
They're the same thing
d)
Creep is a person
11.
A ________ is a large mass of ice and snow slowly moving on land.
a)
Fjord
b)
Glacier
c)
Loess
d)
Creep
12.
As glaciers move they pick up boulders, gravel and sand in a process called ________.
a)
Abrasion
b)
Moving
c)
Sliding
d)
Plucking
13.
Dragged rock fragments leave scars on bedrock called ________.
a)
Scars
b)
Stripes
c)
Grooves
d)
Tattoos
14.
_______________ are shallower scars on bedrock.
a)
Striations
b)
Stripes
c)
Chevrons
d)
Light scars
15.
As glaciers melts they leave behind _______, a mixture of different sized sediments.
a)
Grill
b)
Till
c)
Bill
d)
Spill
16.
A __________ is a ridge, or pile, of deposit left at the end of a glacier.
a)
Noraine
b)
Boraine
c)
Moraine
d)
Loraine
17.
____________ is material deposited in layers by the meltwater of a glacier.
a)
Backwash
b)
Inwash
c)
Outwash
d)
Mouthwash
18.
An ________ us a type of outwash deposit formed as meltwater rivers within the ice deposit sand and gravel.
a)
Moraine
b)
Loess
c)
Till
d)
Esker
19.
Periods of widespread glaciation over the last 2-3 million years are known as _________.
a)
Stone ages
b)
Ice ages
c)
Chilly ages
d)
Rock of ages
20.
________ are bowl shaped basins in the sides of mountains, created by valley glaciers.
a)
Esker
b)
Arete
c)
Horns
d)
Cirques
21.
________ form when two valley glaciers erode a mountain side-by-side.
a)
Arete
b)
Cirque
c)
Horn
d)
Esker
22.
Glacially eroded valleys have this kind of shape.
a)
T
b)
Q
c)
V
d)
U
23.
___________ can scatter dust or volcanic ash over thousands of kilometers.
a)
Dust storms
b)
Wind erosion
c)
Sandstorms
d)
Thunderstorms
24.
This removes small particles of loose sediment, leaving behind heavier materials.
a)
Abrasion
b)
Loess
c)
Deflation
d)
Sandstorms
25.
Wind behaves like a sandblaster wearing down rocks and pitting them in a process called _____________.
a)
Scratching
b)
Eroding
c)
Plucking
d)
Abrasion
26.
___________ occur when winds blow dry topsoil from open fields, overgrazed areas, or places with little or no vegetation.
a)
Top soil forms
b)
Sandstorms
c)
Loess storms
d)
Dust storms
27.
Deflation and abrasion happen most often in areas where there is little _____________ to hold sediments in place.
a)
Vegetation
b)
Water
c)
People
d)
Loess
28.
When strong winds blow in the deserts, beaches or dry riverbeds, an airborne sand cloud or _______ occurs.
a)
Dust storm
b)
Sandstorm
c)
Sandy dust storm
d)
Dusty sandstorm
29.
_____________ are rows of trees that can slow down wind, reducing erosion.
a)
Windbreaks
b)
Tree farms
c)
Wind traps
d)
Christmas tree farms
30.
Fine grained sediments known as ________ helped form fertile soil fields in the Midwestern United States.
a)
Sand
b)
Dust farms
c)
Deposition
d)
Loess
31.
A mound of sediments drifted by the wind is called a ________.
a)
Pile
b)
Dune
c)
Arete
d)
Dust storm
32.
The more gently sloping side of a dune faces the ______.
a)
West
b)
North
c)
Wind
d)
Air
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