Indiana Science Grade 6

Chapter 9: Weathering and Erosion

Weathering and Erosion

1.
Which list correctly places channels in order from smallest to largest?
A)stream, gully, rill
B)rill, gully, stream
C)rill, stream, gully
D)gully, rill, stream
2.
Soil is a mixture of all of the following EXCEPT __________.
A)erosion
B)organic matter
C)weathered rock
D)air
3.
Chemical weathering is more rapid in areas with __________.
A)warm, moist air
B)dry, warm air
C)moist, cool air
D)dry, cool air
4.
Silt that is carried by the wind and then deposited is called __________.
A)talcum
B)flour
C)till
D)loess
5.
Sediment accumulates to create all of the following EXCEPT __________.
A)sand dunes
B)bars
C)deltas
D)mountain bowls
6.
All of the following EXCEPT __________ can weather rock.
A)plants
B)sunlight
C)animals
D)freezing and thawing
7.
Canyons are formed by the erosional processes of __________.
A)streams
B)gravity
C)wind
D)ice
8.
Deflation is an erosional process of __________.
A)ice
B)water
C)landslides
D)wind
9.
The most important agent(s) of erosion is/are __________.
A)ice
B)gravity
C)wind
D)streams
10.
__________ is a mixture ranging from small particles to large boulders.
A)Sediment
B)Till
C)Deposition
D)Outwash
11.
A __________ occurs along curved surfaces.
A)creep
B)rock slide
C)slump
D)mudflow
12.
Rainfall can cause all of the following types of mass movement EXCEPT __________.
A)slump
B)mudflows
C)creep
D)rockslides
13.
Gravity, ice, wind, and water are agents of __________.
A)deflation
B)erosion
C)abrasion
D)runoff
14.
Water moving over Earth's surface results in __________.
A)runoff
B)deflation
C)abrasion
D)loess
15.
Plant roots can contribute to __________.
A)chemical weathering only
B)chemical and mechanical weathering
C)mechanical weathering only
D)neither chemical nor mechanical weathering
16.
Soil formation is affected by all of the following EXCEPT __________.
A)climate
B)parent rock type
C)the amount of sediment
D)surface features of an area
17.
Mechanical weathering can result from the action of all of the following EXCEPT __________.
A)ice wedging
B)plant roots
C)carbonic acid
D)burrowing by animals
18.
__________ is the result of sand and gravel deposits left by rivers.
A)Deposition
B)Till
C)Sediment
D)Outwash
19.
__________ are formed when sediment accumulates in large amounts at the mouth of a river.
A)Outwashes
B)Deltas
C)Tills
D)Rills
20.
U-shaped valleys are formed by __________.
A)glaciers
B)lakes
C)rock slides
D)rivers
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