Earth Science - Unit 6 - Topic: Weathering & Erosion

Fill in the blank: The process that breaks down rocks into smaller pieces without changing their chemical composition is called _____________ weathering.

Which process is an example of mechanical weathering?

• Oxidation

• Frost wedging

• Hydrolysis

• Carbonation

What happens to water as it freezes in cracks in rocks?

• Contracts

• Dissolves minerals

• Expands

• Evaporates

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Fill in the blank: The type of weathering where outer layers of rock peel away due to temperature changes and expansion is called "onion-skin weathering" or _________.

Chemical weathering changes the composition of rocks.

• True

• False

Which of the following contributes to chemical weathering?

• Frost wedging

• Abrasion

• Carbonic acid

• Temperature only

Fill in the blank: The reaction of oxygen with iron-rich rocks is called ___.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which climate would most likely experience chemical weathering at the fastest rate?

• Cool and dry

• Warm and wet

• Hot and dry

• Cold and snowy

A rock with a larger surface area weathers more slowly than a rock with a smaller surface area.

• True

• False

Hydrolysis is a process involving:

• The breakdown of rock by temperature changes

• The reaction of water with minerals

• The removal of outer rock layers

• The movement of sediment

Tags

NGSS.MS-ESS2-2