Weathering

Front 1

A falling rock breaking into smaller pieces is an example of:

Back 1

Mechanical weathering

Front 2

Limestone dissolving in rainwater is an example of:

Back 2

Chemical weathering

Front 3

Chemical weathering cannot occur without------ being present.

Back 3

Water

Front 4

Chemical weathering proceeds most slowly in a ------- and ------ climate

Back 4

Cold

Dry

Front 5

What minerals weather fastest, the early formed minerals or the later formed minerals?

Back 5

Early

Front 6

What rock-forming mineral is most stable?

Back 6

Quartz

Front 7

Which soil horizon contains organic matter?

Back 7

A Top soil

Front 8

Which of the five soil forming factors is most important in determining the properties of a soil?

Back 8

Climate

Front 9

Caliche is a soil layer rich in:

Back 9

Calciam carbonate

Front 10

Laterites are soils that have a ------ color

Back 10

Red

Front 11

Define weathering:

Back 11

The response of earth materials to conditions on the surface of the earth.

Minerals will weather if they are not in equilibrium with the low temperature, low pressure conditions of the surface of teh earth.

Front 12

The two main types of weathering are:

Back 12

Mechanical weathering

Chemical weathering

Front 13

Define mechanical weathering:

Back 13

The physical disintegration of rock into smallwer pieces

Front 14

Define chemical weathering:

Back 14

The decomposition of rock resulting from exposure to water and atmospheric gases.

Front 15

List three important mechanical weathering processes:

Back 15

Falling rocks

Root wedging

Frost wedging