Understanding Weathering and Erosion

What is the process called when rocks are broken down into smaller pieces without changing their chemical composition?

• Chemical weathering

• Mechanical/physical weathering

• Erosion

• Deposition

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DOK Level 1: Recall

Which of the following is a landform created by the deposition of sand and sediment along a coastline?

• Sinkholes

• Barrier Islands

• Caves

• Karst Topography

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DOK Level 1: Recall

Explain how frost wedging contributes to mechanical weathering.

• It involves the chemical breakdown of minerals.

• It occurs when water freezes and expands in cracks, breaking the rock apart.

• It is the process of rocks being dissolved by acidic water.

• It involves the movement of sediment from one place to another.

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DOK Level 2: Skill/Concept

Which of the following processes is primarily responsible for the formation of caves in limestone regions?

• Erosion

• Deposition

• Chemical weathering

• Mechanical weathering

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DOK Level 1: Recall

Describe how karst topography is formed.

• Through the deposition of sand and sediment along coastlines.

• By the mechanical breakdown of rocks into smaller pieces.

• Through the dissolution of soluble rocks such as limestone by acidic water.

• By the accumulation of sediment in riverbeds.

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DOK Level 2: Skill/Concept

What is the primary difference between weathering and erosion?

• Weathering involves the movement of materials, while erosion involves the breakdown of rocks.

• Weathering involves the breakdown of rocks, while erosion involves the movement of materials.

• Both involve the chemical alteration of rocks.

• Both involve the physical breakdown of rocks.

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DOK Level 1: Recall

Identify the process that leads to the formation of sinkholes.

• Deposition of sediment

• Erosion by wind

• Chemical weathering of limestone

• Mechanical weathering by ice

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DOK Level 1: Recall

How do sandbars form along coastlines?

• By the chemical breakdown of rocks

• Through the deposition of sand by waves and currents

• By the mechanical weathering of rocks

• Through the erosion of coastal cliffs

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DOK Level 2: Skill/Concept

Which of the following is an example of chemical weathering?

• Frost wedging

• Oxidation of minerals

• Abrasion by wind

• Deposition of sediment

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DOK Level 1: Recall

Discuss the role of water in the process of chemical weathering.

• Water acts as a physical force that breaks rocks apart.

• Water transports sediment from one location to another.

• Water facilitates the chemical reactions that break down minerals in rocks.

• Water deposits minerals to form new rocks.

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DOK Level 2: Skill/Concept