Understanding Weathering Processes

What is the main difference between physical and chemical weathering?

• Physical weathering changes the chemical composition of rocks, while chemical weathering does not.

• Physical weathering changes the form or shape of rocks without altering their chemical composition, while chemical weathering changes the chemical composition.

• Physical weathering occurs only in cold climates, while chemical weathering occurs only in warm climates.

• Physical weathering is caused by biological factors, while chemical weathering is caused by physical factors.

Tags

NGSS.MS-PS1-2

Which of the following is an example of physical weathering?

• Oxidation

• Dissolution

• Ice wedging

• Rusting

What process involves water entering cracks in rocks, freezing, and expanding to widen the cracks?

• Root wedging

• Exfoliation

• Ice wedging

• Oxidation

Tags

NGSS.MS-ESS2-2

Which type of weathering is primarily responsible for the formation of caves?

• Exfoliation

• Dissolution

• Wind abrasion

• Glacier abrasion

What is the result of oxidation in rocks with high iron content?

• The rock becomes smoother.

• The rock expands and contracts.

• The rock "rusts" and flakes apart.

• The rock dissolves completely.

Tags

NGSS.MS-ESS2-2

Which of the following processes is an example of chemical weathering?

• Root wedging

• Exfoliation

• Oxidation

• Wind abrasion

What is the primary agent of weathering in wind abrasion?

• Water

• Ice

• Sand

• Plants

Which type of weathering involves the expansion and contraction of rocks due to temperature changes?

• Ice wedging

• Exfoliation

• Root wedging

• Dissolution

What is the main cause of root wedging?

• Water freezing in cracks

• Plant roots growing into cracks

• Sand carried by wind

• Glaciers moving over rocks

Which of the following is NOT a type of physical weathering?

• Ice wedging

• Root wedging

• Oxidation

• Exfoliation