(5th year) Weathering

Choose the reasons exfoliation commonly occurs in the desert.

• Large diurnal temperature range.

• Lots of precipitation.

• Lack of cloud cover.

Talus is another name for _____

Freeze-thaw action is more common in upland areas.

• True

• False

Identify the weather conditions needed for freeze-thaw action to occur.

• Lack of cloud cover.

• Precipitation.

• Temperatures fluctuating above and below the freezing point of water.

What is another word for salt crystallisation?

Where are the results of salt crystallisation commonly found?

• Mountains

• Deserts

• Coastlines

'Onion peeling' is another word for what kind of physical weathering?

Which rock types weather faster?

• Rocks containing softer minerals such as feldspar, calcite, or iron.

• Rocks containing harder materials such as quartz.