Soil

Dark nutrient rich part of soil that is made of recently decomposed material

• Clay

• Loam

• Top Soil

• Humus

allowing liquids or gases to pass through it

• A Horizon

• Permeable

• Water Tight

• Sand

Deepest layer of the soil that has not been weathered

• Top Soil

• Decomposer

• Bed Rock

• Mechanical Weathering

a mixture of weathered rock, rock fragments, decayed organic matter, water, and air

• Soil

• Loam

• Organic

• Trees

Forms as rain washes nutrients and minerals down from the A horizon, also known as subsoil

• A Horizon

• B Horizon

• C Horizon

• D Horizon

Topsoil layer made of recently decayed and decomposed material mixed with weathered pieces of rock

• A Horizon

• B Horizon

• C Horizon

• D Horizon

The top layer that has organic matter, living organisms, and rock particles

• Loam

• Bottom Soil

• Top Soil

• A Horizon

removal of dissolved materials from soil by water moving downwards through soil.

• Leaching

• Run Off

• Erosion

• Weathering

Layer of loose organic material on top of soil that has NOT YET been decomposed 

(O horizon)

• A Horizon

• Top Soil

• Leaves

• Litter

Humus is bad for soil.

• True
• False