wed ppt review cynthia
TRANSCRIPT
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WeatheringMechanical
vs. Chemical
Erosion 5 Agents Potluck
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What is the process that breaks down rock and other substances?
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weathering
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What is the physical process that breaks down rock into smaller
pieces?
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mechanical weathering
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What is the process that breaks down rock through chemical changes?
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chemical weathering
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What are the two most important factors that determine the rate at
which weathering occurs?
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type of rock and climate
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In what climate will weathering occur the fastest?
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hot and wet
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What is the name given to weathering that occurs as a result of repeated freezing and thawing of water? Double your points if
you can tell me the type of weathering this is.
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frost wedging; mechanical
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What do we call weathering that occurs as a result of oxygen
reacting with water and iron? Double your points if you can tell
me the type (mechanical or chemical) of weathering.
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oxidation; chemical
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What is the type of weathering that occurs when feldspar turns to clay? Double your points if you
can tell me the type of weathering.
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hydrolysis; chemical
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What is the type of weathering that occurs as a result of repeated
heating and cooling? Double your points if you can tell me the
type of weathering.
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thermal expansion; mechanical
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How can plants cause both mechanical and chemical
weathering?
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root pry and plant acids
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What is the movement of particles by wind, water, ice,
gravity, or waves?
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erosion
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What is the material moved by erosion called?
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sediment
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What process must occur before erosion can occur?
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weathering
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What agent causes the greatest amount of erosion?
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water
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What form of mechanical weathering can be found in most erosion
circumstances?
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abrasion
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Which agent of erosion includes plucking and abrasion?
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glaciers
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Which agent of erosion was responsible for problems in the
Dust Bowl?
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wind
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Which agent of erosion occurs both above and below ground?
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water
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Which agent of erosion involves impact and abrasion?
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waves
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Which agent of erosion involves slump, creep, and landslides?
Add 200 points if you can tell me what these are types of.
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gravity; mass movement
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What occurs when agents of erosion lay down sediment?
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deposition
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What type of weathering is acid rain?
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chemical weathering
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What is the type of weathering that causes layers of rock to be uploaded
as a result of pressure release?
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exfoliation
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What do weathering, erosion, and deposition have in common? Add 200 points if you can name more
than one similarity.
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shape and change Earth’s surface; part of a cycle; all have
to do with sediment
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How can weathering, erosion, and deposition happen at the
same time? Add 500 points if you can describe a situation that
involves more than two.
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Examples:Wind (erosion, abrasion, deposition)
Water (weathering, erosion, abrasion, deposition)
Waves (abrasion, erosion, deposition)
Glaciers (erosion, abrasion, deposition)