Soil

The rate at which water and air moves through the soil.

• Soil permeability

• Soil porosity

• Humus

The spaces that allow air and water to move through the soil.

• Soil permeability

• Soil porosity

• Humus

What creates spaces in soil for air and water?

• Soil permeability

• Soil porosity

• Humus

What do plants NOT need in order to grow?

• Nitrogen

• Potassium

• Phosphorus

• Sodium

The amount of sand, silt, and clay in the soil determines the __________.

• Texture

• pH

• Acidity

__________ is equal parts clay, sand, and silt.

• Loam

• Sand

• Silt

• Clay

What consists of coarse, large pieces of rock that we can see?

• Loam

• Sand

• Silt

• Clay

Fine, small particles that water soaks well into is called ________.

• Loam

• Sand

• Silt

• Clay

________ is finer than silt and sand with little space for air and water to move.

• Loam

• Sand

• Silt

• Clay

A soil's profile is made up of layers, also known as _________________.

• Textures

• Horizons

• Fertilizer

• Loam