Soil - you will need your texture triangle

Soil is made of ---

• weathered rocks and minerals.

• dead plants and animals.

• air and water.

• all of the above

Tags

NGSS.MS-ESS2-2

Which layer of soil is on the bottom of a soil profile?

• topsoil

• subsoil

• bedrock

• humus

Which of the following is NOT one of the three layers of soil?

• topsoil

• undersoil

• subsoil

• bedrock

Humus is ---

• the dead parts of plants and animals in soil.

• A food we eat with pretzels.

• The tiny particles inside of soil.

• The roots that come off of a plant and live in soil.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand

• silt

• clay

• humus

Tags

NGSS.MS-LS2-3

What is the layer of soil just below the topsoil?

• bedrock

• subsoil

• topsoil

• humus

Which layer of soil are these roots growing in?

• bedrock

• topsoil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Horizontal layers of soil are called ---

• Soil profiles

• Soil horizons

The texture of soil depends mainly on ---

• the types of plants that grow in the soil.

• the size of the particles in the soil.

• the color of the soil.

• the number of worms in the soil.

Tags

NGSS.MS-LS2-4

What is the layer of soil that contains humus, leaf litter, and other organic matter called?

• O - Organic

• A - Topsoil

• B - Subsoil

• R - Bedrock