Weathering LC Geography

What is weathering?

• The movement of rocks by water or wind

• The breaking up and decay of rocks on the Earth's surface through natural processes

• The creation of new rocks from existing ones

• The melting of rocks deep within the Earth's crust
  

What is another name for physical weathering?

• Chemical weathering

• Erosion

• Mechanical weathering

• Sedimentation

What is another name for freeze thaw action?

• Frost Wedging

• Chemical Weathering

• Rock Exfoliation

• Onion Weathering

What percentage does water expand by when it freezes during the freeze-thaw process?

Explain the process of freeze thaw action.

Draw a diagram to represent freeze thaw action.

What is another name for exfoliation?

• Frost action

• Chemical Weathering

• Onion-Weathering

• Freeze-thaw Weathering

What causes the outer layers of rock to expand during the day in the desert?

• Freezing temperatures

• Uneven heating by sunlight

• Water seeping into cracks

• Strong winds

What happens to the outer layers of rock during the night in exfoliation?

• They expand due to heat.

• They dissolve in water

• They contract due to low temperatures.

• They are removed by wind erosion.

Which of the following statements accurately describes chemical weathering?

• It involves the physical breakdown of rocks without altering their chemical composition.

• It changes both the physical appearance and chemical composition of rocks through chemical reactions.

• It is the same as physical weathering and does not involve chemical reactions.

• It refers to the process of rocks breaking down solely due to temperature changes.