3.7A Soil Formation

Front

What is weathering of rock?

Back

The breaking down of rock by wind, water, and ice.

Front

What is soil made of?

Back

Soil is made of decomposed plant and animal remains and weathered rock.

Front

What are plant remains?

Back

Plant remains include dead leaves, dried twigs, and seed covers.

Front

What does ice do to rocks?

Back

Ice can break the rock into smaller pieces.

Front

What is the main component of soil?

Back

The main components of soil are minerals, organic matter, water, and air.

Front

How does water affect rocks?

Back

Water can speed up the weathering process of rocks.

Front

What is the role of decomposers in soil formation?

Back

Decomposers break down dead plants and animals, enriching the soil.

Front

What is the difference between soil and dirt?

Back

Soil is a living ecosystem, while dirt is just the mineral part without life.

Front

What is erosion?

Back

Erosion is the process of moving soil and rock from one place to another.

Front

What are the layers of soil called?

Back

The layers of soil are called horizons.