Soils Practice Questions

Front

What are the layers of soil in order from top to bottom?

Back

Humus, Topsoil, Subsoil, Parent Material/Weathered Bedrock, Bedrock

Front

What is soil made of?

Back

Weathered rocks and minerals, dead plants and animals, air and water.

Front

What is permeability in soil?

Back

The ability to allow water to flow through.

Front

What determines the texture of soil?

Back

The percentage of sand, silt, and clay particles.

Front

What do we call the different parts of soil?

Back

Layers.

Front

What is humus?

Back

Decomposed organic matter that enriches soil.

Front

What is topsoil?

Back

The uppermost layer of soil, rich in nutrients and organic matter.

Front

What is subsoil?

Back

The layer of soil beneath topsoil, containing minerals and less organic material.

Front

What is parent material in soil?

Back

The underlying geological material from which soil develops.

Front

What is bedrock?

Back

The solid rock layer beneath soil and sediment.