Mechanical and Chemical Weathering

Front

How does freezing water cause the weathering of rocks?  The freezing water—

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expands cracks and breaks rocks

Front

The process that breaks down rocks and other materials on Earth's surface is called

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weathering

Front

How does wind abrasion work? Options: Sediment is blown off a surface from wind., Wind-blown sediment strikes a surface., Wind blows large chunks of rock off a surface., Sediment falls off of a surface on its own.

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Wind-blown sediment strikes a surface.

Front

What is mechanical weathering?

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Process through which rocks are physically broken into smaller pieces.

Front

During chemical weathering, what can happen to the type of rock that has undergone chemical weathering?

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A new rock is produced that is different from the original rock.

Front

The diagrams show a natural process that weathers rock. Which statement best explains why this process results in weathering?

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water expands when it freezes

Front

Which of the following is an example of mechanical weathering? Acidic groundwater dissolving limestone, frost wedging, Paper being burned

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frost wedging

Front

A marble statue is left exposed to the weather. Within a few years, the details on the statue have begun to weather away. This weathering probably is caused by...

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carbonic acid in rainwater

Front

How does wind abrasion work? Options: Sediment is blown off a surface from wind., Wind-blown sediment strikes a surface., Wind blows large chunks of rock off a surface., Sediment falls off of a surface on its own.

Back

Wind-blown sediment strikes a surface.

Front

Which agents break down earth materials? Options: wind only, earthquakes and gravity, ice and 007, wind, water, and ice

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wind, water, and ice