WEDS Test Review

What often happens to rocks that undergo chemical weathering?

• They form crystals.  

• They produce acids.

• They become stronger.

• They crumble more easily.

______________ is the breaking down of rock material by physical and chemical processes. 

• Weathering

• Erosion

• Deposition

• Sedimentary Exchange

______________ occurs when water seeps into the cracks of rocks and expands when it freezes.

• Icing

• Wedging

• Expansion

• Ice Wedging

_____________ weathering is the breaking down of rocks by chemical reactions.

• Chemical

• Physical

• Deposition

• Erosion

Seeds from plants land on or in the cracks of rocks and begin to grow.  As they do, the roots slowly help to separate the rock.  This is an example of:

• Plant Root

• Animal Action

• Chemical Weathering

• Oxidation

Which one of the examples below is physical weathering?

• lichens growing on rock

• acid rain wearing away limestone

• oxidation (rusting) of a flag pole

• frost wedging splitting a rock apart

Which of these terms describes the process of acid rain wearing out limestone?

• deposition

• chemical weathering

• physical weathering

• erosion

Which of these is an example of erosion?

• light shining onto a mountain

• wind blowing away sediment

• rain breaking down rock

• all options are correct

This is an example of _____________________________.

• physical weathering

• chemical weathering

In the pictures below, choose a picture that shows chemical weathering of rock.

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