What is Soil?

Front

All soil is the same.

Back

False

Front

Rocks, air, and water are earth materials.

Back

True

Front

What is organic material in the soil?

Back

Remains of dead plants and animals.

Front

What is silt?

Back

Rocks that are smaller than sand.

Front

When plants and animals decay, what are the tiny pieces called?

Back

Humus.

Front

What is soil made of?

Back

Soil is made of minerals, organic matter, air, and water.

Front

What is the top layer of soil called?

Back

Topsoil.

Front

What is the process of soil formation called?

Back

Soil formation is called pedogenesis.

Front

What is the role of earthworms in soil?

Back

Earthworms help aerate the soil and break down organic matter.

Front

What is clay?

Back

Clay is a type of soil that consists of very fine particles.