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WorksheetsMechanical and Chemical Weathering
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
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
2.
The process that breaks down rocks and other materials on Earth's surface is called
a)
weathering
b)
erosion
c)
soil conservation
d)
decomposition
3.
How does wind abrasion work?
a)
Sediment is blown off a surface from wind.
b)
Wind-blown sediment strikes a surface.
c)
Wind blows large chunks of rock off a surface.
d)
Sediment falls off of a surface on its own.
4.
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.
5.
During chemical weathering, what can happen to the type of rock that has undergone chemical weathering?
a)
a new rock is produced that is larger than the original rock
b)
a new rock is produced that is the same as the original rock
c)
a new rock is produced that is different from the original rock
d)
no new rock is created - it is just smaller in size
6.
The diagrams shows a natural process that weathers rock.
Which statement best explains why this process results in weathering?
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
7.
Which of the following is an example of mechanical weathering?
a)
Acidic groundwater dissolving limestone
b)
frost wedging
c)
Paper being burned
8.
A marble statue is left exposed to the weather. Within a few years, the details on the statue have begun to weather away. This weathering probably is caused by...
a)
oxygen in the air
b)
carbonic acid in rainwater
c)
lichens
d)
abrasion
9.
How does wind abrasion work?
a)
Sediment is blown off a surface from wind.
b)
Wind-blown sediment strikes a surface.
c)
Wind blows large chunks of rock off a surface.
d)
Sediment falls off of a surface on its own.
10.
Which agents break down earth materials?
a)
wind only
b)
earthquakes and gravity
c)
ice and 007
d)
wind, water, and ice
11.
What are the two factors that affect the rate at which weathering occurs?
a)
climate and mass of rock
b)
climate and size of rock
c)
type of rock and size of rock
d)
type of rock and climate
12.
Rust that forms on rocks or metal because of extended exposure to oxygen is what example of chemical weathering?
a)
carbon dioxide (carbonic acid)
b)
acid rain
c)
oxidation
d)
lichens
13.
Which type of climate will have faster chemical weathering?
a)
Hot and Wet
b)
Cold and Dry
c)
Hot and Cold
d)
Cold and Wet
14.
What are the two factors that affect the rate at which weathering occurs?
a)
climate and mass of rock
b)
climate and size of rock
c)
type of rock and size of rock
d)
type of rock and climate
15.
When wind blows over the land, it picks up the smallest particles of sediment.
a)
True
b)
False
16.
What is the relationship between surface area and the rate of weathering?
a)
As surface area increases, the rate of weathering decreases
b)
As surface area increases, the rate of weathering increases
c)
As surface area decreases, the rate of weathering increases
d)
There is no relationship
17.
Which will weather faster, a 40 kg tombstone or a 10 kg tombstone?
a)
10 kg
b)
40 kg
c)
they will both weather at the same rate
d)
I'm not sure
18.
What does it mean when a rock's surface area increases?
a)
There are more surfaces available to be weathered on the rock
b)
There are less surfaces available to be weathered on the rock
c)
The rock has weathered completely
d)
Surface area has nothing to do with rocks
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