SOIL Review

What type of soil is made up of very small broken pieces of rock and has a smooth texture?

• sand

• silt

• clay

• loam

Which type of soil is made up of these large particles and has a gritty texture?

• sand

• silt

• clay

• loam

Which type of soil is a mixture of sand, silt, and clay?

• sand

• silt

• clay

• loam

Which type of soil has the smallest particles and can turn hard and compact like concrete when it is dried out?

• sand

• silt

• clay

• loam

Which type of soil is the best for growing plants?

• sand

• silt

• clay

• loam

What is the term given to the materials that plants and animals need to grow?

• topsoil

• subsoil

• nutrients

• vegetation

Which layer in the soil profile contains large slabs of rock below the soil layers?

• humus

• bedrock

• parent material

• topsoil

Which layer in the soil profile is a middle layer of soil which is a combination of soil and rocks? This layer contains less humus and is lighter in color than A horizon.

• subsoil

• topsoil

• parent material

• humus

What is the term given to describe the top layer of soil that is made up of broken down pieces of dead plants and animals?

• loam

• bedrock

• humus

• topsoil

Which layer in the soil profile is found under the humus horizon and provides support and nutrients to plants? It is a very fertile layer.

• bedrock

• subsoil

• parent material

• topsoil