Soil Notes

SOIL is one of the most valuable ___________ factors in an ecosystem.

• biotic

• abiotic

Everything that lives on land depends on the Soil Quality. Soil quality is a combination of ___ different factors

• 3

• 4

• 5

• 6

Tags

NGSS.MS-LS1-5

Everything that soil is made up of: rock particles (sand, silt, clay), humus (decayed organic matter), minerals, air, water.

• Soil Composition

• Soil Profile

• Texture

• Permeability

What is another term used for the layers of the soil profile?

Top layer of a soil profile.  Generally dark in color and nutrient rich, with a mixture of humus, clay, and minerals.most suitable for plant growth

• Topsoil

• Subsoil

• Parent Material

• Bedrock

The second layer in a soil profile. It is located directly beneath the topsoil.

• Topsoil

• Subsoil

• Parent Material

• Bedrock

The third layer in a soil profile.  It contains the least amount of nutrients and is located directly above the bedrock.

• Topsoil

• Subsoil

• Parent Material

• Bedrock

Material that is at the base of a soil profile. This is larger rocks that will eventually be broken down into parent material.

• Topsoil

• Subsoil

• Parent Material

• Bedrock

Another term for decayed organic matter. Found in the topsoil layer.

Particle size affects which TWO?

• Soil Composition

• Texture

• Permeability

• pH