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Soil Quiz

Soil formation, profile and types

TermDefinition
Decomposer breaks down soil and adds nutrients; worms, fungi, bacteria
Litter dead leaves and twigs found on the ground
Humus this is added to the soil by decomposers which breaks down litter
A Horizon most fertile layer
Bedrock parent material
B Horizon subsoil
Topsoil A Horizon
C Horizon partially weathered bedrock
Clay a natural earthy material that is plastic when wet, consisting essentially of hydrated silicates of aluminum
Sand the more or less fine debris of rocks, consisting of small, loose grains, often of quartz
Silt earthy matter, fine sand, or the like carried by moving or running water and deposited as a sediment
Loam a rich, friable soil containing a relatively equal mixture of sand and silt and a somewhat smaller proportion of clay
Created by: HallRRHS
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