Physical & Chemical Weathering

The natural chemical or physical processes that breaks down rock on Earth's surface.

• weathering
• erosion
• deposition
• jackhammering

These rocks were made smooth by wind blowing smaller rock particles across their surface.  This is an example of:

• ice wedging
• chemical weathering
• acid rain
• abrasion

These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:

• ice wedging
• acid rain
• permeability
• abrasion

Potholes forming in the road after a cold winter is an example of:

• physical weathering

• chemical weathering

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

All of the following are causes of physical weathering except...

• plant growth
• wind
• acid rain
• running water

Rocks being made smooth by tumbling across a streambed

• Weathering
• Erosion
• Deposition

Rust that forms on rocks or metal because of extended exposure to oxygen is what example of chemical weathering?

• carbon dioxide (carbonic acid)
• acid rain
• oxidation
• lichens

Which type of climate will have faster chemical weathering?

• Hot and Wet
• Cold and Dry
• Hot and Cold
• Cold and Wet

What is the relationship between surface area and the rate of weathering?

• As surface area increases, the rate of weathering decreases
• As surface area increases, the rate of weathering increases
• As surface area decreases, the rate of weathering increases
• There is no relationship