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Earth's Changing Surface
Test Description: Earth's Materials- Michigan Standards 6th grade
Instructions: Answer all questions to get your test result.
1) Which type of erosion is probably most responsible for shaping the Earth?
A
Erosion by wind
B
Erosion by water
C
Erosion by gravity
D
Erosion by glaciers
2) Of the following, which is the slowest type of erosion?
A
Landslides
B
Slump
C
Flooding
D
Creep
3) Which of the following is not a type of mechanical weathering?
A
Ice Wedging
B
Abrasion
C
Plant roots
D
Oxidation
4) Which type of erosion creates a V shaped valley?
A
River erosion
B
Wind erosion
C
Gravity erosion
D
Glacier Erosion
5) How does rock break by ice wedging?
A
Rocks break apart as they grind together
B
Plant roots crack the rock as it grows
C
Water inside the cracks of a rock expands in volume when it freezes
6) How are plants involved in the chemical weathering of rocks?
A
Plant roots can break rock as they grow.
B
Plants cause rocks to rust
C
Plants can secrete a weak acid that can dissolve the rocks
7) The moving of weathered material from one location to another is called
A
weathering
B
deposition
C
erosion
D
gravity
8) The material formed from rocks broken down by weathering is called
A
erosion
B
crumbs
C
sediment
D
oxidation
9) The wearing away of soil and rock is called
A
infiltration
B
runoff
C
erosion
D
drainage
10) A delta is created when __________.
A
sediments are deposited as water empties into an ocean
B
sediments are deposited as water empties into a river
C
a rill or gully empties into a stream
D
river water empties from a mountain valley onto an open plain
11) Which force causes erosion to occur?
A
magnetic
B
gravity
C
electrical
D
nuclear
12) What effect does vegetation have on erosion?
A
It speeds erosion up.
B
It increases the possibility of mass movement.
C
It has no effect whatsoever.
D
It slows down erosion.
13) What type of valleys are made by valley glaciers?
A
V-shaped
B
U-shaped
C
streambed
D
flat
14) Slumps, creeps, rockfalls, rock slides, and mudflows are examples of __________.
A
soil formation
B
mass movement
C
erosion from wind
D
deposition
15) What causes dunes to form?
A
deposits from streams
B
wind erosion
C
mountain building
D
glacial deposits
16) How does soil erosion affect topsoil?
A
It makes it more fertile.
B
It keeps it moist.
C
It moves the topsoil to other areas where it is more needed.
D
It washes it away.
17) How do chemical and mechanical weathering differ?
A
Chemical weathering can occur with the help of water reacting with carbon dioxide, and water has nothing to do with mechanica
B
Mechanical and chemical weathering can happen with the help of animals.
C
Mechanical weathering occurs when rocks are broken by physical processes, and chemical weathering happens when chemical react
D
Plant roots can help mechanical weathering occur, but have no impact on soil when it comes to chemical weathering.
18) Each layer of a soil profile is called a __________
A
horizon
B
humus
C
horizontal
D
litter
19) Surface processes that work to break down rock is called__________.
A
oxidation
B
weathering
C
ice wedging
D
erosion
20) Soil is a mixture of __________.
A
rock and water
B
weathered rock and water
C
eroded rock, organic material, water and air
D
decayed organic matter and oxygen
*select an answer for all questions
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