Soils Vocab Quiz

solid rock under the soil

• Clay

• Bedrock

• Horizon

• Silt

Balanced mixture of sand,silt, and clay

• Loam
• Sandy clay
• Silty clay
• Sandy loam

product of decomposition of plants and accumulates in soil as organic matter

• Aggregate

• Clay

• Humus

• Loam

vertical section of soil that allows visibility of all horizons.

• Horizon

• Section

• Profile

• Density

Layers of soil parallel to earths surface

• Bedrock

• Topsoil

• Subsoil
• Horizon

A single unit of soil structure. See also “ped”, “structure”

• Aggregate

• Loam

• Silt

• Clay

Chemical elements in the soil that

are required by plants to live and grow.

• Mineral

• Nutrient

• Silt

• Bedrock

 loss of topsoil by water or wind

• Erosion

• Density

• Loam

• Clay