Soil and Rocks

Front

What is soil?

Back

Soil is a natural resource made up of minerals, organic matter, air, and water that supports plant life.

Front

What are the four main ingredients of soil?

Back

The four main ingredients of soil are water, air, rocks, and humus.

Front

What is humus?

Back

Humus is the organic matter in soil that is formed from decomposed plants and animals.

Front

What is the difference between clay and sand?

Back

Clay is made of very fine particles and holds water well, while sand has larger particles and drains water quickly.

Front

What is topsoil?

Back

Topsoil is the uppermost layer of soil that is rich in nutrients and supports plant growth.

Front

What is the role of air in soil?

Back

Air in soil provides oxygen for plant roots and soil organisms.

Front

What happens when land is cleared of trees?

Back

When land is cleared of trees, it is often used for farming or other agricultural purposes.

Front

What is the only thing on earth that can scratch a diamond?

Back

Another diamond can scratch a diamond.

Front

What is the main purpose of soil?

Back

The main purpose of soil is to support plant growth by providing nutrients, water, and a medium for roots.

Front

What is the process of soil formation?

Back

Soil formation is the process that involves the weathering of rocks and the decomposition of organic matter over time.