Soil

Front

What is the top layer of soil called?

Back

Topsoil is the uppermost layer of soil, rich in nutrients and organic matter.

Front

What is humus?

Back

Humus is the dark, organic material in soil formed from the decomposition of dead plants and animals.

Front

What happens when living things decompose?

Back

Their parts break down into soil, enriching it with nutrients.

Front

What nonliving things can you find in the soil?

Back

Rocks, minerals, and water are nonliving components found in soil.

Front

What do most plants need to grow?

Back

Most plants need soil, sunlight, and water to grow.

Front

What is the role of worms in the soil?

Back

Worms help aerate the soil and break down organic matter, improving soil health.

Front

What is subsoil?

Back

Subsoil is the layer of soil beneath the topsoil, containing minerals and less organic material.

Front

What is bedrock?

Back

Bedrock is the solid rock layer beneath the soil, which can affect soil formation.

Front

What is soil erosion?

Back

Soil erosion is the removal of the top layer of soil by wind or water, which can harm plant growth.

Front

What is the importance of soil for plants?

Back

Soil provides nutrients, water, and support for plants to grow.