Soil Sizes
The biggest sediment size
This is the uppermost "organic" layer that consists of mostly dead plant and animal matter.
What is Horizon O?
This is the breaking down of rock.
What is WEATHERING?
What is another name for organic matter?
What is HUMUS?
Decaying remains of plants and animals.
What is ORGANIC MATTER?
The smallest sediment size
The top layer of soil that consists of minerals and organic matter. Is the layer normally plowed or tilled. Seeds germinate in this layer.
What is TOPSOIL OR HORIZON A?
This is the movement of weathered material by water, wind, ice, or gravity.
What is EROSION?
The 1-6 values on the pH scale are considered what.
What is ACIDIC?
Natural or chemical material that is added to soil to supply plants with one or more nutrients.
What is FERTILIZER?
The medium sediment size
What is SILT?
The layer of soil beneath the topsoil that contains mostly clay and other minerals.
What is HORIZON B OR SUBSOIL?
True or False: Does weathering take a short amount of time.
What is FALSE?
Gaps between soil particles
What is PORE SPACE?
The 2 things that can be found in the pore spaces surrounding soil particles.
What is AIR and WATER?
Soil that is made up of equal parts of clay, sand, and silt
What is LOAM?
This layer is made up of partially weathered rock. Has no organic matter and does not sustain life.
What is HORIZON C or PARENT MATERIAL?
The material from which soil is formed.
What is parent material?
Soil pH affects which of the following soil characteristics: water holding capacity, nutrient availability, texture, or color.
What is NURTIENT AVAILABILTY?
This tool can be used to determine how acidic or alkaline a soil is.
What is PH SCALE?
when soil particles clump together to form larger particles
What is AGGREGATION?
What lies beneath the soil and is made of hard, solid rock.
What is HORIZON R OR BEDROCK?
What are 3 agents/causes of weathering?
What is wind, water, ice, chemicals, plants, and/or animals?
The process in which water dissolves and carries nutrients from the topsoil down through the subsoil.
What is LEACHING?
What is used to classify soils using percentages of soil textures?
What is SOIL TEXTURE TRIANGLE?