Unit 7 Review

The process that breaks down rock and other substances at Earth's surface is called ______.

• Erosion

• Deposition

• Weathering

• Metamorphism

In which type of climate, does soil form most rapid?

• cold, dry

• cold, humid

• warm, humid

• warm, dry

Tags

NGSS.MS-ESS2-6

Mechanical weathering is the process in which rock is physically broken into smaller pieces. Which of the following is NOT an example of mechanical weathering?

• Plant roots pry apart cracks in the rock.

• Animals burrow into the ground near the rocks.

• Carbon dioxide combines with rainwater to form carbonic acid that dissolves rock.

• Water in the cracks of the rock expands when it freezes and acts as a wedge.

The diagram shows what happens to a rock in a stream/ river as time passes. Which process of change is best represented by the sequence shown in the diagram?

• weathering

• deposition

• erosion

• sedimentation

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NGSS.MS-ESS2-2

Which activity demonstrates chemical weathering?

• Freezing of water in the cracks of a sandstone sidewalk.

• Abrasion of a streambed by tumbling rocks.

• Grinding of talc into a powder.

• Dissolving of limestone by carbonic acid.

Tags

NGSS.MS-PS1-2

This form of chemical weathering is created when air pollution from the burning of fossil fuels mixes with water in the atmosphere.

• Carbonic acid

• Hydrolysis

• Acid rain

• Oxidation

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NGSS.MS-ESS3-4

Which of the following is an example of chemical weathering?

• Plant roots breaking rocks apart.

• The oxidation of the Statue of Liberty.

• Rocks on mountains breaking due to ice wedging.

• Rocks tumbling and becoming smaller in a river bed.

Which of the following is an example of something that contributes to mechanical weathering?

• burrowing animals

• animal paths

• tree roots

• all of the following

Which of the following is a type of mechanical weathering?

• oxidation

• leaching by lichens

• acid precipitation

• ice wedging

The dissolving of a basic rock in acidic water is an example of __________ weathering.

• mechanical

• physical

• chemical

• biological