Soils Lesson

Humus Makes up what horizon

• O

• B

• A

• R

The topsoil refers to which horizon?

• O

• A

• B

• C

The Subsoil refers to which horizon?

• O

• A

• B

• C

Bedrock is found in which horizon?

• O

• B

• C

• R

Which is the largest soil particle?

• Sand

• Silt

• Clay

Which is the smallest soil particle?

• Sand

• Silt

• Clay

Name the soil with

50% sand

40% Silt

10% Clay

• Loam

• Sandy Clay

• Silty Clay Loam

• Sand

Name the soil

20% Sand

40% Silt

40% Clay

• Clay

• Silt Loam

• Loam

• Sandy Clay

Name the Soil

80% Sand

10% Silt

10% Clay

• Sandy Loam

• Sand

• Silty Clay

• Clay Loam

Name the Soil

30% Sand

10% Silt

60% Clay

• Silt Loam

• Clay

• Loam

• Sandy Loam