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Weathering

Total questions: 67

Worksheet time: 36mins

Name
Class
Date
1.
The natural chemical or physical processes that breaks down rock on Earth's surface.
a)
weathering
b)
erosion
c)
deposition
d)
jackhammering
2.
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
3.
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
4.
These rocks were made smooth by wind blowing smaller rock particles across their surface.  This is an example of:
a)
ice wedging
b)
chemical weathering
c)
acid rain
d)
abrasion
5.
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
6.
How might a weathered mountain appear different than an unweathered mountain?
a)
Weathered mountain would be taller.
b)
Weathered mountain would be rounder and less jagged.
c)
Weathered mountain would be more jagged and less rounded.
d)
Weathered mountain would have no trees.
7.
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.
8.
Weeds growing into the cracks in a sidewalk and the sidewalk begins to crumble is an example of:
a)
mechanical weathering
b)
chemical weathering
9.
A metal statue slowly turning green after years of being outside is an example of:
a)
mechanical weathering
b)
chemical weathering
10.

How can rain change a mountain?

a)

Rain causes flash flooding on mountains.

b)

Water erosion wears down the peaks of a mountain.

c)

Water can cause cracks in the mountainside.

11.

What is the rate of change of rain changing a mountain?

a)

Medium

b)

Fast

c)

Slow

12.

The Earth can change both quickly and slowly?

a)

True

b)

False

13.

What is an example of an event that causes a slow change?

a)

Earthquake cracking a highway.

b)

Flooding of a river.

c)

Wind blowing a sand dune.

14.
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
15.
What is likely to cause cracks on the sidewalk?
a)
Repeated freezing and thawing of water
b)
Tree roots or plant roots growing bigger
c)
Both and A and B
d)
Neither A or B 
16.
What human activities can increase the rate of weathering?
a)
Increasing the amount of acid rain
b)
Paving over large portions of land
c)
All of the other answers. 
d)
Strip mining and agriculture
17.
Which diagram represents mechanical weathering?
a)
G
b)
F
c)
H
d)
J
18.
Which type of climate would cause the greatest rate of weathering?
a)
Cold and dry
b)
Cold and humid (wet)
c)
Warm and humid (wet)
d)
Warm and dry
19.
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.
20.
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
21.
Which of the following is the most important agent of chemical weathering to form this cave?
a)
Water - It can carry acid and dissolve rock
b)
Erosion - Moves the rocks from one place to another
c)
Wind - It displaces rocks
d)
Exfoliation - New cracks give chemical reactions the chance to operate
22.
Which of the following is the most important agent of chemical weathering to form this cave?
a)
Water - It can carry acid and dissolve rock
b)
Erosion - Moves the rocks from one place to another
c)
Wind - It displaces rocks
d)
Exfoliation - New cracks give chemical reactions the chance to operate
23.
Which kind of weathering involves the breakdown of rocks through direct contact with atmospheric conditions such as heat, water, ice and pressure?
a)
physical
b)
chemical
24.
Physical weathering is also known as ______________ weathering.
a)
chemical
b)
mechanical
c)
breakdown
d)
heat
25.
Which kind of weathering is the transformation of rock into one or more compounds?
a)
physical
b)
chemical
26.
Which of these can not cause physical weathering?
a)
wind
b)
ice
c)
plants
d)
acid rain
27.
What type of weathering does this image display?
a)
physical
b)
chemical
28.
What type of weathering does this image display?
a)
physical
b)
chemical
29.
What type of weathering does this image display?
a)
physical
b)
chemical
30.
What type of weathering does this image display?
a)
physical
b)
chemical
31.
What type of weathering does this image display?
a)
physical
b)
chemical
32.
What type of weathering does this image display?
a)
physical
b)
chemical
33.

How can wind change a sand dune?

a)

Water can wash the sand away.

b)

Strong winds can blow sand off the dunes.

c)

Wind can blow sand into the water.

34.

What is the rate of change of wind blowing sand off sand dune?

a)

Medium

b)

Fast

c)

Slow

35.

How can an earthquake change mountains?

a)

Earthquakes can cause landslides and tsunamis.

b)

Earthquakes can move mountains.

c)

Earthquakes can cause sand to move from sand dune to sand dune.

36.

What is the rate of change when earthquakes cause landslides and tsunamis?

a)

Medium

b)

Fast

c)

Slow

37.

Is an earthquake an event that happens very quickly or very slowly?

a)

Medium

b)

Quickly

c)

Slowly

38.
What is likely to cause cracks on the sidewalk?
a)
Repeated freezing and thawing of water
b)
Tree roots or plant roots growing bigger
c)
Both and A and B
d)
Neither A or B 
39.
When Joe saw the Rocky Mountains for the first time, he exclaimed, "These mountains are much younger than ours back East!" Which feature supports his conclusion that the Rockies were relatively young mountains?
a)
Their sedimentary layers are still exposed
b)
They have rounded tops
c)
They have sharp peaks
d)
Weathering has not yet hardened the rock
40.
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.
41.
The natural chemical or physical processes that breaks down rock on Earth's surface.
a)
weathering
b)
erosion
c)
deposition
d)
jackhammering
42.
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
43.
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
44.
These rocks were made smooth by wind blowing smaller rock particles across their surface.  This is an example of:
a)
ice wedging
b)
chemical weathering
c)
acid rain
d)
abrasion
45.
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
46.
This rock may chemically weather easily because is has many spaces or holes in it that allow water to seep through it, meaning it is:
a)
permeable
b)
abrasive
c)
erosion
d)
unchangable
47.
These gravestones have slowly broken down and turned a blackish color due to the action of:
a)
ice wedging
b)
abrasion
c)
acid rain
d)
mechanical weathering
48.
How might a weathered mountain appear different than an unweathered mountain?
a)
Weathered mountain would be taller.
b)
Weathered mountain would be rounder and less jagged.
c)
Weathered mountain would be more jagged and less rounded.
d)
Weathered mountain would have no trees.
49.
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.
50.
Weeds growing into the cracks in a sidewalk and the sidewalk begins to crumble is an example of:
a)
mechanical weathering
b)
chemical weathering
51.
Potholes forming in the road after a cold winter is an example of:
a)
mechanical weathering
b)
chemical weathering
52.
A metal statue slowly turning green after years of being outside is an example of:
a)
mechanical weathering
b)
chemical weathering
53.
Rocks along a riverbed that are smoothed from continuously moving water and sediment rubbing against them is an example of:
a)
mechanical weathering
b)
chemical weathering
54.
A piece of sandstone changing color (from brown to rusty red) from exposure to water and air is an example of:
a)
mechanical weathering
b)
chemical weathering
55.
The formation of stalactites and stalagmites in a cave as water mixed with carbon dioxide creates carbonic acid, which dissolves away the limestone, is an example of:
a)
mechanical weathering
b)
chemical weathering
56.
The formation of large cracks in the face of a mountain from ice wedging is an example of:
a)
mechanical weathering
b)
chemical weathering
57.
Acid rain wearing away the face of a marble gravestone or statue is an example of?
a)
mechanical weathering
b)
chemical weathering
58.
Exposure to rain and oxygen causes the metal minerals in rocks to rust and fall apart.  This is an example of:
a)
mechanical weathering
b)
chemical weathering
59.
Lichens (small green plants) growing on a large boulder release enzymes and other acids that slowly break the rock apart. This is an example of:
a)
mechanical weathering
b)
chemical weathering
60.
Weathering causes rocks and minerals to break into smaller pieces.  Which event is the best example of weathering?
a)
a raindrop splashing in a lake
b)
a snowball rolling down a mountain
c)
a tree root growing into the crack of a rock
61.

Which of the following is an example of mechanical weathering?

a)

Rust forming on a rock cliff

b)

Acid rain causing blurred inscriptions on a ancient tomb

c)

Rounded pebbles in a stream bed

d)

A sudden rainstorm on a hot day

62.

Which of the following is an example of chemical weathering?

a)

Rust forming on a rock cliff

b)

Frost action breaking a rocky ledge apart

c)

A flat, rounded piece of rock breaking off a rock's surface

d)

Rocks falling from high places

63.

How do chemical and mechanical weathering processes differ?

a)

Chemical weathering breaks rocks into smaller pieces but mechanical weathering doesn't

b)

Chemical weathering affects only igneous rocks but mechanical weathering affects all types of rocks

c)

Chemical weathering involves water but mechanical weathering does not

d)

Chemical weathering changes the composition of the rock but mechanical weathering does not

64.

Mechanical weathering can occur from ALL the following EXCEPT

a)

Burrowing by animals

b)

Ice expands when frozen and cracks rocks

c)

Trees roots expand as they grow and crack rocks

d)

Carbonic acid eats away layers of limestone rock

65.

Chemical weathering can occur from ALL of the following EXCEPT

a)

Acids given off by lichens and mosses eat away at rocks

b)

Sulfuric acid causes blurred words on gravestones and monuments

c)

Wind blows sand which wears away cliffs

d)

Rust caused by oxygen combining with iron-bearing minerals in rocks causes red bands on limestone cliffs

66.

Chemical weathering can occur from ALL of the following EXCEPT

a)

Acids given off by lichens and mosses eat away at rocks

b)

Sulfuric acid causes blurred words on gravestones and monuments

c)

Wind blows sand which wears away cliffs

d)

Rust caused by oxygen combining with iron-bearing minerals in rocks causes red bands on limestone cliffs

67.

Susan rubs two rocks together. One of the rocks wears away to form small particles. What would most likely happen if this rock continues to break into small pieces after Susan puts the rocks back on the ground?

a)

The pieces may become part of the soil

b)

The pieces may become part of the bedrock

c)

The pieces may become part of the ice wedging process

d)

The pieces may become part of the organic matter in the soil

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