Soil Composition and Formation

What materials are formed from rocks and organic matter?

• Sand

• Silk

• Soils

• Clay

The wearing away or a change in the appearance or texture of something by long exposure.

• Environmental Factors

• Weathering

• Organic Matter

• Soil Horizon

Of the four soil components, 45% of a soil is comprised of:

• Air

• Water

• Minerals

• Organic Matter

The small creatures and plants that die over time are often called:

• Organic Compost

• Organic Organisms

• Dead

• Organic Matter

The materials that are weathered or eroded into small particles like sand and silt.

• Organic Matter

• Rocks

• Weathering

• Soils

What is a factor that controls soil formation.

• Landscape

• Parent Materials

• Climate

• Organisms

• Time

Fifty (50) percent of a soil is composed of:

• Air

• Organic Matter

• Water

• Minerals

This soil particle is the largest particle and can be compared to a basketball.

• Sand

• Silt

• Clay

• Loam

The "B" Horizon is lighter in color and called the:

• Bedrock

• Parent Materials

• Subsoil

• Topsoil

What is a soil profile?

• Layers of soils.

• Differ in a number of easily seen soil properties.

• Arrangement of the soil horizons.

• Show soil color, thickness, texture, and structure.