Weathering Flashcard

Front

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

Back

expands cracks and breaks rocks

Front

The diagrams show a natural process that weathers rock. Which statement best explains why this process results in weathering? Options: frozen water acts as a solute, water expands when it freezes, the mass of water increases when it freezes, frozen water dissolves most types of rock

Back

water expands when it freezes

Front

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

Back

oxidation

Front

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

Back

As surface area increases, the rate of weathering increases

Front

How might a weathered mountain appear different than an unweathered mountain?

Back

Weathered mountain would be rounder and less jagged.

Front

Which is the most important agent of chemical weathering to form a cave?

Back

Water - It can carry acid and dissolve rock

Front

The formation of stalactites and stalagmites in a cave as water mixed with carbon dioxide creates carbonic acid, which dissolves away the limestone, is an example of:

Back

chemical weathering

Front

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

Back

mechanical weathering

Front

How is mechanical weathering different from chemical weathering?

Back

Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.

Front

Freshwater smoothing out rock in a river.

Back

Mechanical Weathering