Weathering and Erosion

What is weathering?

• A process that breaks down rocks into smaller pieces

• A shift in weather patterns

• The process by which mountains are formed

• The process by which the seasons change

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

How might a weathered mountain appear different from an unweathered mountain?

• The weathered mountain would be taller

• The weathered mountain would appear rounder in shape

• The weathered mountain would appear more jagged

• The weathered mountain would contain fewer trees

Tags

NGSS.MS-ESS2-2

What can you infer about ice from the information presented in the movie?

• It usually causes chemical weathering

• It expands as it freezes

• It barely causes weathering at all

• It does not exert pressure on rocks

Tags

NGSS.MS-ESS2-2

How is mechanical weathering different from chemical weathering?

• Chemical weathering happens over a much shorter time frame than mechanical weathering

• Chemical weathering occurs in the tropics; mechanical weathering occurs in temperate climates

• Chemical weathering occurs in mountains; mechanical weathering occurs on flat surfaces

• Chemical weathering changes the chemical composition of materials; mechanical weathering does not

Tags

NGSS.MS-PS1-2

What might cause mechanical weathering?

• Acid rain

• Violent earthquakes

• Growing plants and expanding ice

• Volcanic eruptions

Tags

NGSS.MS-ESS2-2

What impact does weathering have on soil formation?

• Chemical weathering adds helpful chemicals to the soil

• Rocks are broken down into smaller pieces, and finally into sediment

• Mechanical weathering adds ice to the soil, which turns into water

• Volcanic eruptions contribute metamorphic rocks to the soil

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What types of rocks are formed by weathering?

• Metamorphic rocks

• Igneous rocks

• Sedimentary rocks

• Volcanic rocks

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

How long does the weathering process take?

• A few days

• No more than a month

• Exactly one year

• Years and years

Tags

NGSS.MS-ESS2-2

Carbonic acid is a mixture of:

• Water and carbon dioxide

• Calcite and quartz

• Oxygen and hydrogen

• Water and limestone

Tags

NGSS.MS-PS1-1

What process hollows out limestone caves?

• Mechanical weathering

• Chemical weathering

• Spatial weathering

• Cave weathering

Tags

NGSS.MS-ESS2-2