Understanding Weathering and Erosion

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

• Chemical weathering

• Physical weathering

• Erosion

• Deposition

Which of the following is an example of frost wedging?

• Water dissolving minerals in rock

• Water freezing and expanding in cracks of rocks

• Roots growing into rock cracks

• Wind carrying sand

Tags

NGSS.MS-ESS2-2

What is the main cause of root action in weathering?

• Water freezing

• Plant roots growing into cracks in rocks

• Wind blowing sand

• Acid rain

Which type of weathering is caused by the actions of living things like plants and animals?

• Physical weathering

• Chemical weathering

• Biological weathering

• Mechanical weathering

Tags

NGSS.MS-LS2-3

What happens to rocks during frost wedging?

• They melt

• They dissolve in water

• They break apart due to freezing and thawing

• They are eaten by animals

Tags

NGSS.MS-ESS2-2

Which of the following is NOT an example of chemical weathering?

• Hydrolysis

• Oxidation

• Frost wedging

• Carbonation

What is a common result of repeated freezing and thawing of water in rock cracks?

• Rocks breaking into smaller pieces

• Formation of new minerals

• Rocks melting

• Soil formation by animals

Tags

NGSS.MS-ESS2-2

Which of the following best describes mechanical weathering?

• Breaking down rocks by chemical reactions

• Formation of soil by decaying plants

• Transporting rocks by wind

• Physically breaking rocks into smaller pieces

What type of weathering occurs when minerals in rocks react with water or air and change composition?

• Mechanical weathering

• Chemical weathering

• Physical weathering

• Biological weathering

When rocks weather (break) it turns to what?

• pebble

• soil

• gravel

• obsidian

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1