Rocks and Weathering

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 the mountains; Mechanical weathering occurs on flat surfaces

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

Tags

NGSS.MS-ESS2-2

What types of rocks are formed by weathering?

• Metamorphic rocks

• Igneous rocks

• Sedimentary rocks

• Volcanic rocks

What process hollows out limestone caves?

• Chemical Weathering

• Mechanical Weathering

• Spatial Weathering

• Cave Weathering

Tags

NGSS.MS-ESS2-2

The movement of rock by wind, water, ice, or gravity is called..

• Deposition

• Erosion

• Weathering

• Physical Change

Tags

NGSS.MS-ESS2-2

How might a weathered mountain appear different from a mountain that has not undergone much weathering?

• The weathered mountain would appear rounder in shape

• The weathered mountain would appear more jagged

• The weathered mountain would be taller

• The weathered mountain would contain fewer trees

Tags

NGSS.MS-ESS2-2

What might cause chemical 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-ESS2-2

How long does the weathering process take?

• Years and years

• Exactly one year

• No more than a month

• A few days

Pick the list which shows ONLY examples of physical weathering..

• water, salt, Carbon Dioxide

• water, ice, wind

• Oxygen, Acids, Animals

• water, wind, gravity

Which type of rocks are formed quickly above ground?

• Extrusive Igneous Rocks

• Sedimentary Rocks

• Metamorphic Rocks

• Intrusive Igneous Rocks