Weathering and Soil Formation

Front

What is the first step of soil formation?

Back

Weathering of parent rock.

Front

Soil formation begins with the weathering of_______?

Back

Rock.

Front

The grinding away of rock by rock particles carried by water, ice, wind, or gravity is called __________.

Back

Abrasion.

Front

What is the movement of soil from one place to another?

Back

Erosion.

Front

How does wind abrasion work?

Back

Wind-blown sediment strikes a surface.

Front

What is weathering?

Back

The process of breaking down rocks into smaller pieces.

Front

What is soil made of?

Back

Minerals, organic matter, water, and air.

Front

What role does humus play in soil?

Back

Humus enriches soil with nutrients and improves its structure.

Front

What is erosion?

Back

The process of moving soil and rock from one location to another.

Front

What is deposition?

Back

The process where eroded materials are dropped off in a new location.