Weathering Processes

The decay or breakdown of rock at Earth's surface.

• Erosion

• Weathering

• Crystallization

• Metamorphism

The breakdown of rock into smaller pieces without a change in composition

• Erosion

• Deposition

• Mechanical (physical) weathering

• Chemical weathering

During chemical weathering, the rocks and minerals will physically break down and undergo chemical change.

• true

• false

The definition of weathering is...

• the breakdown of rock over time into smaller pieces

• the breakdown of rocks over an emotional breakup

• the breakdown of a car on the side of the road

• the breakdown of rock over the breakup of a favorite rock group

All rocks and minerals do not weather at equal rates.

Hard rocks ___________________ to weathering than soft rocks, for example. This means hard rocks weather more slowly than soft rocks.

• are less resistant

• are more resistant

• have the same resistance

What type of climate produces the most rapid chemical weathering rates?

• warm and dry

• cold and dry

• cold and wet

• warm and wet

Which is the best choice to demonstrate WATER weathering?

• 
• 
• 
• 

Even the smallest plant can cause weathering.

• true

• false

The repeating processes of freezing and thawing of water in rocks cause cracks to form and grow larger and eventually break apart.

• true

• false

This shows what kind of weathering?

• physical/mechanical

• biological

• chemical