Chapter 2 Review BJU

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What is chemical weathering?

Back

Chemical weathering is the process that changes the chemical composition of rocks, often through reactions with water, acids, or gases.

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

What is an example of chemical weathering?

Back

Acid rain dissolving limestone.

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What is topsoil and why is it dark in color?

Back

Topsoil is the uppermost layer of soil, and it is dark in color because it has a large amount of organic material.

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What is weathering?

Back

Weathering is the natural chemical or physical processes that break down rock on Earth's surface.

Tags

NGSS.MS-ESS2-2

Front

How does a weathered mountain differ from an unweathered mountain?

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A weathered mountain would be rounder and less jagged compared to an unweathered mountain.

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NGSS.MS-ESS2-2

Front

What is mechanical weathering?

Back

Mechanical weathering is the physical breakdown of rocks into smaller pieces without changing their chemical composition.

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NGSS.MS-ESS2-2

Front

What is the difference between mechanical and chemical weathering?

Back

Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.

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What role does water play in weathering?

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Water can cause both chemical and mechanical weathering by dissolving minerals and breaking rocks apart.

Tags

NGSS.MS-ESS2-4

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind, water, or ice.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

What is deposition?

Back

Deposition is the process where materials are laid down or settled after being transported by erosion.