Weathering Review

the breaking down of rocks and minerals on earth's surface. Often due to physical and chemical processes

• Weathering

• Erosion

• Earth System

• Surface Process

Involves a reaction; a new substance is created

• physical weathering

• chemical weathering

• physical weathering: abrasion

• chemical weathering: reaction with acid

• chemical weathering: oxidation

• physical weathering: ice/frost wedging

Limestone dissolves in the presence of acid rain

• physical weathering

• chemical weathering

oxygen + iron = rust

• physical weathering: abrasion

• chemical weathering: reaction with acid

• chemical weathering: oxidation

• physical weathering: frost wedging

Abrasion is physical weathering by:

• ice

• repeated contact

• oxidation

• reaction to acid

Abrasion in water results in what kind of shape/texture in a rock?

• rounded & smooth

• rounded & jagged

• angular & jagged

Which rock samples have undergone abrasion in water for the longest period of time?

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Which rock is most likely to be chemically weathered by acid rain?

• shale

• conglomerate

• limestone

• bituminous coal

Which type of climate has the greatest amount of rock weathering caused by frost action?

• a wet climate in which temperatures remain below freezing

• a wet climate in which temperatures alternate from below freezing to above freezing

• a dry climate in which temperatures remain below freezing

• a dry climate in which temperatures alternate from below freezing to above freezing