Soil Layers (Horizons)

Which layer of soil are these roots growing in?

• subsoil

• topsoil

Tags

NGSS.MS-LS1-5

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 that contains the roots of the big trees?

• Organic

• Topsoil

• Subsoil

• Bedrock

Which layer is the bottom of the soil profile?

• Partially Weathered Parent Material

• Separated rock

• Bedrock

• Topsoil

Tags

NGSS.MS-ESS2-4

Layers of soil are also known as?

• Soil Profiles

• Soil Horizons

• Soil sheets

• Soil cores

In which layer of the soil profile contains the MOST humus?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Tags

NGSS.MS-LS2-1

In which layer of the soil profile contains a solid layer of rock?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Soil is made of?

• weathered rocks and minerals

• dead plants and animals

• air and water

• all of the above

Tags

NGSS.MS-LS2-3

The first layer of soil, called the A horizon is also known as?

• Bedrock

• Parent Material

• Topsoil

• Subsoil

Which type of soil drains the slowest?

• silt

• clay

• sand

• loam