Soils

Which soil has the smallest particles?

• clay

• loam

• sand

• silt

What is the layer of rock that is below the soil?

• subsoil

• topsoil

• humus

• bedrock

Which soil has the largest particles?

• clay

• sand

• loam

• silt

What is the layer under the Humus that provides support and nutrients to plants?

• humus

• bedrock

• topsoil

• subsoil

Tags

NGSS.MS-LS1-5

What is the top layer of soil made up of broken down pieces of dead plants and animals?

• bedrock

• humus

• topsoil

• subsoil

Tags

NGSS.MS-LS2-3

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

Which layer is the bottom of the soil profile?

• C - Partially Weathered Parent Material
• D - Separated rock
• R - Bedrock
• A - Topsoil

Layers of soil are also known as:

• Soil Profiles
• Soil Horizons
• Soil sheets
• Soil cores

An organism, especially a soil bacterium, fungus, or invertebrate, that breaks down organic material is a...

• Decomposer
• Burrower
• Humus source

Tags

NGSS.MS-LS2-3

Which soil type has the smoothest feel when your rub it between your fingers?

• sand

• clay

• silt

• loam