Physical and Chemical Weathering of Rocks

What is weathering of rocks?

• A process that creates new rocks

• A physical or chemical change that alters the characteristics of rocks

• A method of mining for minerals

• A form of erosion

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

• Frost wedging

• Chemical oxidation

• Thermal stress

• Abrasion

What does frost wedging involve?

• Rocks being broken down by wind

• Water expanding as it freezes

• Heat causing rocks to expand

• Plants breaking apart rocks

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What is oxidation?

• A process of breaking rocks into smaller pieces

• A chemical reaction where oxygen combines with iron

• A type of mechanical weathering

• A form of erosion caused by water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which process creates iron oxide, commonly known as rust?

• Hydrolysis

• Carbonation

• Oxidation

• Frost wedging

What is carbonation?

• A method of freezing water

• A process where carbon dioxide mixes with water to form acid

• A type of physical weathering

• A chemical reaction that occurs in dry environments

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following can cause abrasion?

• Only water

• Wind, water, and glaciers

• Heat from the sun

• None of the above