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Weathering Vocabulary
Types of Weathering
7
Science
7th Grade
02/02/2011

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Term
Weathering
Definition
The process that breaks down rock and other substances at Earth’s surface.
Term
Erosion
Definition
The removal or carrying away of rock particles by wind, water, ice, or gravity.
Term
Mechanical Weathering
Definition
The type of weathering in which rock is physically broken into smaller pieces
Term
Abrasion
Definition
The grinding away of rock by rock particles carried by water, ice, wind, or gravity.
Term
Ice Wedging
Definition
Water expands when it freezes and ice acts like a wedge that forces things apart. WedgesThe process of ice in rocks freezes which widens and deepens cracks.
Term
Chemical Weathering
Definition
The process that breaks down rock through chemical changes.
Term

This picture is an example of what effect of mechanical weathering?

[image]

Definition
Release of Pressure
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