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Weathering

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

WEATHERING IS ...

a)

Disintegration of rocks

b)

Decomposition of rocks

c)

Both of the above

2.

WEATHERING IS A........PROCESS

a)

Static

b)

Continous

c)

Fast

3.

Mechanical weathering involves...

a)

Disintegration of rocks without the change in their chemical composition

b)

Disintegration of the rocks with the change in Chemical composition

c)

None of the above

4.

Granular disintegration and exfoliation is caused due to..

a)

Change in temperature

b)

Freezing action of water

c)

Human activities

5.

Freezing action in weathering takes place in

a)

Mountainous regins

b)

Equatorial regins

c)

Deserts

6.

Chemical union of water with a mineral is called

a)

Solution

b)

Hydration

c)

Carbonation

7.

Limestone and rock salt disintegrate in the form of

a)

Solution

b)

Hydration

c)

Oxidation

8.

When minerals present in the rocks reacts with the atmospheric oxygen is called

a)

Hydration

b)

Oxidation

c)

Solution

9.

Penetration of roots and uprooting of roots causes

a)

Chemical weathering

b)

Mechanical weathering

c)

Biological weathering

10.

Moles,worms,humans and plants are the agents of ...

a)

Chemical weathering

b)

Biological weathering

c)

Mechanical weathering

11.

One of the effects if weathering

a)

Soil formation

b)

Transportation

c)

Disintegration

12.

Weathering is the process of -

a)

Moving sediment from one place to another

b)

Dropping or leaving sediment in a location

c)

Breaking down rocks into sediment

13.

Carbonic acid is formed in nature when -

a)

Water dissolves particles of soil to form mud

b)

The oxygen molecules in water bond with minerals in rocks

c)

Water bonds with carbon dioxide in the air and/or soil

14.

Plant roots conduct -

a)

Physical weathering

b)

Chemical weathering

c)

Both physical AND chemical weathering

15.
Bobby observed that a metal trash can was covered with rust.  What type of weathering caused the rust on the trash can?
a)
Mechanical weathering 
b)
Wind weathering
c)
Chemical weathering
d)
Erosion weathering
16.
A student hiking in a rock area on a mountain notices that wide, deep cracks have formed in some of the large rocks. Some of the cracks are so large that the rocks have broken apart. Which process most likely caused these rocks to crack and creak? 
a)
Erosion by wind
b)
Water freezing and thawing
c)
Erosion by fast-moving
d)
Sediments being deposited.
17.
The surfaces of old concrete statues are often covered with small holes or pits. Which of these MOST LIKELY causes these holes or pits?
a)
The concrete becomes pitted as water freezes in small cracks in the statue.
b)
The concrete is chipped away by sand particles blown by strong winds
c)
The concrete is chemically weathered by acid rain.
d)
Long exposure to sunlight causes the pits to form.
18.
What is the weathering process in which rocks are broken down into smaller pieces (sediments) and do not change the rock composition?
a)
Acid weathering 
b)
Gravity weathering
c)
Chemical weathering
d)
Mechanical weathering
19.
How is mechanical weathering different from chemical weathering?
a)
Chemical weathering happens over much shorter time frame than mechanical weathering.
b)
Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.
c)
Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.
d)
Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.
20.
Physical weathering is also known as ______________ weathering.
a)
chemical
b)
mechanical
c)
breakdown
d)
heat
21.
Select the answer that shows the order of events a rock goes through.
a)
erosion, weathering, deposition
b)
weathering, erosion, deposition
c)
deposition, weathering erosion
d)
erosion, deposition, weathering
22.
What is the process that picks up and moves weathered rocks?
a)
deposition
b)
landslide
c)
weathering
d)
erosion
23.
The natural chemical or physical processes that breaks down rock on Earth's surface.
a)
weathering
b)
erosion
c)
deposition
d)
jackhammering
24.
The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another.
a)
weathering
b)
erosion
c)
deposition
d)
dumptruck
25.
This type of weathering occurs when rock is physically broken down into smaller pieces of rock.
a)
mechanical weathering
b)
chemical weathering
c)
erosion weathering
d)
deposition
26.
This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.
a)
mechanical weathering
b)
chemical weathering
c)
erosion weathering
d)
deposition
27.
These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:
a)
ice wedging
b)
acid rain
c)
permeability
d)
abrasion
28.
How is mechanical weathering different from chemical weathering?
a)
Chemical weathering happens over much shorter time frame than mechanical weathering.
b)
Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.
c)
Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.
d)
Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.
29.
A hot wet climate causes weathering to take place -
a)
slowly
b)
rapidly
c)
unevenly
d)
at the same rate as when the climate is dry and cool
30.
Weeds growing into the cracks in a sidewalk and the sidewalk begins to crumble is an example of:
a)
mechanical weathering
b)
chemical weathering
31.

How does this image show the progression of weathering?

a)

Over time, the high mountains are worn down to the low hills.

b)

The lower hills are built up with snow and ice to the high mountains

c)

Earth's volcanic activity produces this type of mountain

d)

The constant rains in the rain forest will change the mountains from snow covered to green.

32.
A rock containing iron becomes soft and crumbly and reddish-brown in color.  It probably has been chemically weathered by -
a)
abrasion
b)
carbon dioxide
c)
oxygen
d)
acid rain
33.
the process by which layers or sheets of rock gradually break off
a)
exfoliation
b)
abrasion
c)
erosion
d)
deposition
34.

What is weathering?

a)

A process that break rocks down into smaller pieces.

b)

A shift in weather patterns.

c)

The process by which mountains are formed.

d)

The process by which seasons change.

35.

How might a weathered mountain appear different from an unweathered mountain?

a)

The weathered mountain would be taller.

b)

The weathered mountain would appear rounder in shape.

c)

The weathered mountain would appear more jagged.

d)

The weathered mountain would contain fewer trees.

36.

What can you infer about ice from the information presented in the movie?

a)

It usually causes chemical weathering.

b)

It expands as it freezes.

c)

It barely causes weathering at all.

d)

It does not exert pressure on rocks.

37.

How is mechanical weathering different from chemical weathering?

a)

Chemical weathering happens over a much shorter time frame than mechanical weathering.

b)

Chemical weathering occurs in the tropics; mechanical weathering occurs in temperate climates.

c)

Chemical weathering occurs in mountains; mechanical weathering occurs on flat surfaces.

d)

Chemical weathering changes the chemical composition of materials; mechanical weathering does not.

38.

What might cause mechanical weathering.

a)

Acid rain (carbonation)

b)

Rusting (oxidation)

c)

Growing plants and expanding ice

d)

Volcanic eruptions

39.

What types of rocks are formed by weathering?

a)

Metamorphic rocks

b)

Igneous rocks

c)

Sedimentary rocks

d)

Volcanic rocks

40.

How long does the weathering process take?

a)

a few days

b)

no more than a month

c)

exactly one year

d)

years and years

41.

Carbonic acid is a mixture of

a)

water and carbon dioxide

b)

calcite and quartz

c)

oxygen and hydrogen

d)

water and limestone

42.

What process hollows out limestone caves?

a)

mechanical weathering

b)

chemical weathering

c)

spatial weathering

d)

cave weathering

43.

The process by which rock and soil are moved from one place to another is called-

a)

Chemical weatherin

b)

Erosion

c)

Mechanical weathering

d)

Deosition

44.

The grinding/scratching away of rock by other rock particles carried in water, ice, or wind

a)

Frost wedging

b)

Exfoliation

c)

Oxidation

d)

Abrasion

45.

Plants/animals digging under ground with roots or claws to break apart rocks.

a)

Frost wedging

b)

Abrasion

c)

Burrowing

d)

Exfoliation

46.

A type of chemical weathering in which a substance combines with oxygen, as when iron oxidizes, forming rust.

a)

Acid rain

b)

Oxidation

c)

Reaction to water

d)

Exfoliation

47.

Over millions of years, the shape of mountains on Earth's surface can change to low hills and then rolling plains. These changes are most likely caused by-

a)

Folding and faulting

b)

Volcanoes and Earthquakes

c)

Human activity

d)

Weathering and Erosion

48.

Which type of sediment does wind erosion most strongly affect?

a)

Loose, sandy soil

b)

Wet rocks

c)

Wet, compacted soil

d)

Dry, compacted soil

49.

What is the difference between weathering and erosion?

a)

Erosion breaks down the rocks, and weathering carries the broken pieces away.

b)

Erosion carries broken pieces away, and weathering builds the pieces back up into another land mass.

c)

Weathering carries broken pieces away, and erosion builds the pieces back up into another land mass.

d)

Weathering breaks down rocks, and erosion carries the broken pieces away.

50.

A student prepares a model by filling a plastic bottle with water, capping it tightly, and placing it in the freezer for 24 hours. After 24 hours, there are large cracks on the bottle's sides. The student's model most likely represents which of the following types of weathering:

a)

Acid rain

b)

Oxidation

c)

Frost wedging

d)

Abrasion

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