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WorksheetsWeathering and erosion
Total questions: 14
Worksheet time: 7mins
What is physical weathering?
the process by which Earth's surface is broken down into smaller pieces
the process when water falls down from the sky
the process when water is collected
the process of things moving from one place to another
What is erosion?
the process by which Earth's surface is broken down into smaller pieces
the process of moving things from one place to another
the process of water falling from he sky
the process of water collecting
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
slow
sudden
very fast
How do sandy beaches form?
waves pounding pebbles into 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
Why is it hard to see glacial erosion in action?
because they are so big
because light from glaciers reflects too much
because glaciers move very, very slowly
because glacier erosion is very subtle
What do floodplains, sandbars, and river deltas have in common?
they are all formed from water erosion
they're all formed by glacial erosion
they've all been formed from wind erosion
they've all been formed by sand blasting
Based on the information presented in the movie, what would be a simple way to prevent erosion?
blocking the wind
planting trees
preventing rainfall
preventing the flow of rivers
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 have fewer trees
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
What can you infer about ice from the information presented in the movie?
it causes chemical weathering
it expands as it freezes
it does not exert pressure on rocks
it barely causes any weathering
