Layers of Soil

What is a soil profile?

• A vertical section of soil that shows the layers.

• A horizontal section of soil that shows the layers.

• There is no such thing as a soil profile.

Horizon B is made up of ________________?

• topsoil

• subsoil

• bedrock

Tags

NGSS.MS-ESS2-2

Horizon C is made up of _______________?

• bedrock

• topsoil

• subsoil

Horizon A is made up of ____________________?

• subsoil

• topsoil

• bedrock

In which horizon can we find the roots of most plants?

• Horizon B

• Horizon C

• Horizon A

Tags

NGSS.MS-LS1-5

Horizon A is mixture of ________________________.

• clay and weathered rock.

• solid rock that forms the Earth's surface.

• humus, minerals, and small amounts of clay and sand.

Horizon B is a mixture of ________________________.

• clay and weathered rock.

• humus, minerals, and small amounts of clay and sand.

• solid rock

Horizon C is a mixture of ___________________.

• humus, minerals, and small amounts of clay and sand

• solid rock

• clay and weathered rock

Tags

NGSS.MS-ESS2-1

Why does soil vary from region to region?

• Soil is the same in every region.

• Because of different insects in the soil.

• Because of the rock the soil is formed from and the climate of the region.

Tags

NGSS.MS-ESS3-1

In Horizon B, what brings subsoil to the surface?

• pillbugs

• earthworms

• lady bugs

Tags

NGSS.MS-LS2-3