Soil

_________ is the layer of loose material covering Earth's land surface that provides nutrients and support for organisms.

• Clay

• Soil

• Wind

• Ice

Soil is a _________ resource.

• human

• natural

• capital

Soil provides THREE things for organisms. What are those three things?

• Support

• Rocks

• Nutrients

• Habitat

Soil is made from rocks, water, air, and _________ matter.

• Inorganic

• Organic

Soil is made when rocks are ________ over time.

• frozen

• weathered

• stolen

• picked

The weathered pieces of rock get ________ over time.

• smaller

• larger

____________ is the breaking down of rocks.

• Freezing

• Weathering

• Camping

• Making

__________ is found in topsoil. It is the once living matter in soil that adds nutrients.

• Humus

• Rocks

• Clay

• Sand

_________ is the first layer of soil. It is dark in color and where most plant roots grow.

• Topsoil

• Subsoil

• Parent Material

• Bedrock

_________ is the second layer of soil below the topsoil. It is lighter in color and has less organic matter.

• Topsoil

• Subsoil

• Parent Material

• Bedrock