NEW
Font size
WorksheetsWeathering and Erosion
Total questions: 20
Worksheet time: 20mins
What is weathering?
A process that breaks down rocks into smaller pieces
A shift in weather patterns
The process by which mountains are formed
The process by which the seasons change
How might a weathered mountain appear different from an unweathered mountain?
The weathered mountain would be taller
The weathered mountain would appear rounder in shape
The weathered mountain would appear more jagged
The weathered mountain would contain fewer trees
What can you infer about ice from the information presented in the movie?
It usually causes chemical weathering
It expands as it freezes
It barely causes weathering at all
It does not exert pressure on rocks
How is mechanical weathering different from chemical weathering?
Chemical weathering happens over a much shorter time frame than mechanical weathering
Chemical weathering occurs in the tropics; mechanical weathering occurs in temperate climates
Chemical weathering occurs in mountains; mechanical weathering occurs on flat surfaces
Chemical weathering changes the chemical composition of materials; mechanical weathering does not
What might cause mechanical weathering?
Acid rain
Violent earthquakes
Growing plants and expanding ice
Volcanic eruptions
What impact does weathering have on soil formation?
Chemical weathering adds helpful chemicals to the soil
Rocks are broken down into smaller pieces, and finally into sediment
Mechanical weathering adds ice to the soil, which turns into water
Volcanic eruptions contribute metamorphic rocks to the soil
What types of rocks are formed by weathering?
Metamorphic rocks
Igneous rocks
Sedimentary rocks
Volcanic rocks
How long does the weathering process take?
A few days
No more than a month
Exactly one year
Years and years
Carbonic acid is a mixture of:
Water and carbon dioxide
Calcite and quartz
Oxygen and hydrogen
Water and limestone
What process hollows out limestone caves?
Mechanical weathering
Chemical weathering
Spatial weathering
Cave weathering
What type of changes does erosion cause?
Physical changes
Chemical changes
Electrical changes
Magnetic changes
Erosion occurs when natural forces alter the landscape. What does it mean to alter a landscape?
To blow dust around
To change what land looks like
To deposit silt at the mouth of a river
To create a floodplain
Which term BEST describes the rate at which glacial erosion takes place?
Quick
Short
Slow
Sudden
How do sandy beaches form?
Waves pounding pebbles int smaller and smaller pieces
Wind eroding pebbles into smaller pieces
Water freezing and thawing the cracks of pebbles
Rain wearing away rocks into smaller and smaller pieces
Which of the following features would be most affected by weathering?
A
B
C
D
How would a sandblasted rock differ from a rock that hasn't been sandblasted?
A sandblasted rock would be bigger
A sandblasted rock would be smoother in shape and less jagged
A sandblasted rock would be composed of volcanic material
A sandblasted rock would be covered by water
Why is it hard to see glacial erosion in action?
Because glaciers are so big
Because light from glaciers refracts too much
Because glaciers move very, very slowly
Because glacial erosion is usually very subtle
What do floodplains, sandbars, and river deltas have in common?
They've all been formed by water erosion
They've all been formed by glacial erosion
They've all been formed by wind erosion
They've all been formed by sandblasting
What would be a simple way to prevent erosion?
Blocking the wind
Planting trees
Preventing rainfall
Preventing the flow of rivers
What can you infer about the type of erosion that formed the Grand Canyon?
Wind erosion
Water erosion
Sandblasting
Glacial erosion
