Weathering and Erosion Concepts

Front

Breaking down of rocks into smaller pieces

Back

Weathering

Front

The most important agent of weathering

Back

Water

Front

The process in which rocks are broken down into smaller pieces without chemical change

Back

Physical (Mechanical) Weathering

Front

Five types of physical weathering

Back

Frost wedging, Thermal expansion and contraction, Exfoliation, Abrasion, Biological activity

Front

The action of the root splitting the bedrock is an example of:

Back

Biological weathering

Front

What would break down faster: a full piece of chalk or a broken-down one? Why?

Back

A broken-down piece of chalk

Front

Process by which rocks are broken down due to changes in their chemical composition

Back

Chemical weathering

Front

Five types of chemical weathering

Back

Oxidation, Hydrolysis, Carbonation, Acid rain, Biological weathering (by lichen, fungi, etc.)

Front

Iron + O2 = iron oxide =

Back

Rust

Front

Factors that affect the rate of weathering

Back

Climate (temperature and moisture), Rock composition, Surface area exposure, Presence of vegetation and biological activity, Pollution levels (acid rain)