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Worksheets7.2 Weathering
Total questions: 13
Worksheet time: 7mins
How does weathering affect rocks?
Weathering causes the mineral grains to increase in size.
Weathering makes rocks harder.
Weathering occurs when sediment changes to sedimentary rock.
Weathering weakens rock so it can be carried away by erosion.
A tree growing on bedrock extends its root into a crack in the rock and splits the rock. The action of the root splitting the rock is an example of
chemical weathering.
deposition.
erosion.
physical weathering.
Which statement best describes physical weathering that occurs when ice forms within cracks in rock?
Physical weathering only occurs in bedrock composed of granite.
Enlargement of the cracks occurs because water expands as it freezes.
The cracks become wider only because of chemical reactions between water and rock.
This type of weathering is most common in regions with warm, humid climates.
Mineral B was shaken harder.
Mineral B had a glossy luster.
Mineral A was more resistant to abrasion.
Mineral A consisted of smaller pieces before shaking began.
Which kind of rock is most likely to form new compounds when it is exposed to air polluted with acids?
gneiss
limestone
granite
schist
As rock is broken apart by physical weathering processes,
its total surface area decreases.
its total surface area increases.
new minerals form in the rock material.
the mass of the rock increases.
Assuming that rainfall and other precipitation was constant, which graph below best shows how the amount of chemical weathering changes through the calendar year in New York State?
In moist climates where temperatures alternate between warm days well above 0oC and cold nights well below 0oC, why do rocks break apart?
Cooling causes rocks to expand.
Frost forms when ice melts.
Water expands when it freezes.
Water boils at 100oC
Which rock type appears to best resist weathering and erosion?
Roman sandstone
Florence limestone
Milan limestone
Trieste shale
Chemical weathering is most active in a climate that is
warm and dry.
warm and moist.
cold and dry.
cold and moist.
The four limestone samples illustrated below have the same composition, mass, and volume. Under the same climatic conditions, which sample will weather fastest?
Which long-term atmospheric changes would increase the rate of chemical weathering of surface bedrock?
decreasing temperature and decreasing precipitation
decreasing temperature and increasing precipitation
increasing temperature and decreasing precipitation
increasing temperature and increasing precipitation
Which rock layer appears to be most resistant to weathering and erosion?
Lockport dolostone
Rochester shale
Grimsby sandstone
Queenston shale
