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rocks and weathering

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

An example of physical weathering is -

a)

Plant roots and leaves releasing acids

b)

Carbonic acid dissolving limestone

c)

Large temperature changes

d)

Lichens growing on rocks

2.

Weathering is the breaking down of rock into ___________.

a)

boulders

b)

sediment

c)

ice

d)

mountains

3.

Which of the following is NOT a cause of weathering, erosion, and deposition?

a)

Wind

b)

ice

c)

fire

d)

water

4.

The process of breaking up, wearing away, and dissolving of rocks on Earth's surface is called...

a)

deposition

b)

weathering

c)

erosion

d)

sediment

5.

Rain washing away soil from a hillside is an example of...

a)

Erosion

b)

Weathering

c)

Deposition

d)

Washing out

6.

How does freezing water cause the weathering of rocks? The freezing water—

a)

keeps the rocks in place

b)

makes the rocks last longer

c)

causes rocks to fall in landslides

d)

expands cracks and breaks rocks

7.
Formed by heat and pressure
a)
Sedimentary
b)
Metamorphic
c)
Extrusive Igneous
d)
Intrusive Igneous
8.
Formed by cooling & solidification of lava
a)
Sedimentary
b)
Metamorphic
c)
Extrusive Igneous
d)
Intrusive Igneous
9.
Formed by compacting & cementing of sediments
a)
Sedimentary
b)
Metamorphic
c)
Extrusive Igneous
d)
Intrusive Igneous
10.
The natural chemical or physical processes that breaks down rock on Earth's surface.
a)
weathering
b)
erosion
c)
deposition
d)
jackhammering
11.
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
12.
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
13.
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.
14.
__________________is a process in which layers or sheets of rock gradually break off. This process is sometimes called onion-skin weathering, because the rock surface breaks off in thin layers similar to the layers of an onion.
a)
Abrasion
b)
Erosion
c)
Exfoliation
d)
None of the above
15.

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

16.

An example of physical weathering is -

a)

Plant roots and leaves releasing acids

b)

Carbonic acid dissolving limestone

c)

Large temperature changes

d)

Lichens growing on rocks

17.

Ice wedging is an example of -

a)

Physical weathering

b)

Chemical weathering

c)

Both physical AND chemical weathering

18.
How does freezing water cause the weathering of rocks?  The freezing water—
a)
keeps the rocks in place
b)
makes the rocks last longer
c)
expands cracks and breaks rocks
d)
causes rocks to fall in landslides
19.
What is mechanical weathering?
a)
Process through which rocks are physically broken into smaller pieces.
b)
Rocks are broken down through chemical changes.
c)
Rocks are worn away from acid in plant roots.
d)
Rocks broken down by machinery.
20.
The diagrams shows a rock with water trapped in the cracks during the day and at night. 

Which statement best explains why this process results in weathering?
a)
frozen water acts as a solute
b)
water expands when it freezes
c)
the mass of water increases when it freezes
d)
frozen water dissolves most types of rock
21.
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
22.
Which of the following is an example of chemical weathering?
a)
Acid rain dissolving limestone
b)
roots breaking into concrete
c)
paper being ripped
d)
Water running over rocks
23.
All of the following are causes of physical weathering except...
a)
plant growth
b)
wind
c)
acid rain
d)
running water

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