Soil Review

Soil Formation

• Soil formation takes many years, and many things affect a soil as it forms. Soil forms based on five factors. The five factors of soil formation are; Climate, Organisms, Relief, Parent Material, and Time. We often refer to soil formation as CLORPT.

• a type of soil that is large in particle size and rough/gritty in texture. Its good for drainage and air passage but doesn't hold on to nutrients well.

• a type of soil that has the smallest particle size. Its smooth when wet and hard as stone when dry. It holds on to nutrients but gets heavy with water.

• soil that is made up of distinct horizontal layers. They range from rich, organic upper layers (humus and topsoil) to underlying rocky layers (subsoil, regolith and bedrock).

Tags

NGSS.MS-LS2-3

Clay

• a type of soil that is large in particle size and rough/gritty in texture. Its good for drainage and air passage but doesn't hold on to nutrients well.

• the breaking down of rocks and minerals into smaller bits & pieces. Two kinds: Chemical & Mechanical

• a type of soil that has the smallest particle size. Its smooth when wet and hard as stone when dry. It holds on to nutrients but gets heavy with water.

• is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs. This layer is very thin and is usually pretty dark.

Silt

• a mixture of weathered rock & organic matter that usually covers bedrock.

• a type of soil that is medium in particle size, smooth, powdery & slippery when wet. It allows some drainage but can easily get packed down which limits the amount of air and water that pass through it.

• this layer is a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. This is the layer where plant roots grow in.

• the bottom layer of soil, mostly made up of solid rock

Tags

NGSS.MS-LS1-5

Sand

• is made up of a few different types of soil, with equal amounts of clay, silt, and sand mixed together. This type of soil is ideal for gardening.

• soil that is made up of distinct horizontal layers. They range from rich, organic upper layers (humus and topsoil) to underlying rocky layers (subsoil, regolith and bedrock).

• the bottom layer of soil, mostly made up of solid rock

• a type of soil that is large in particle size and rough/gritty in texture. Its good for drainage and air passage but doesn't hold on to nutrients well.

Loam

• is made up of a few different types of soil, with equal amounts of clay, silt, and sand mixed together. This type of soil is ideal for gardening.

• a type of soil that is large in particle size and rough/gritty in texture. Its good for drainage and air passage but doesn't hold on to nutrients well.

• soil that is made up of distinct horizontal layers. They range from rich, organic upper layers (humus and topsoil) to underlying rocky layers (subsoil, regolith and bedrock).

• a mixture of weathered rock & organic matter that usually covers bedrock.

Bedrock

• Soil formation takes many years, and many things affect a soil as it forms. Soil forms based on five factors. The five factors of soil formation are; Climate, Organisms, Relief, Parent Material, and Time. We often refer to soil formation as CLORPT.

• the bottom layer of soil, mostly made up of solid rock

• is made up of slightly unbroken rock and only a little bit of organic material is found here. Plant roots are not found in this layer

• this layer usually consists of clay and other particles washed down from the soil above.

Topsoil or A Horizon

• is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs. This layer is very thin and is usually pretty dark.

• soil that is made up of distinct horizontal layers. They range from rich, organic upper layers (humus and topsoil) to underlying rocky layers (subsoil, regolith and bedrock).

• this layer is a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. This is the layer where plant roots grow in.

• a type of soil that is medium in particle size, smooth, powdery & slippery when wet. It allows some drainage but can easily get packed down which limits the amount of air and water that pass through it.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Humus or O Horizon

• is made up of a few different types of soil, with equal amounts of clay, silt, and sand mixed together. This type of soil is ideal for gardening.

• this layer usually consists of clay and other particles washed down from the soil above.

• a type of soil that has the smallest particle size. Its smooth when wet and hard as stone when dry. It holds on to nutrients but gets heavy with water.

• is the top layer of soil that is made up of living and decomposed materials like leaves, plants, and bugs. This layer is very thin and is usually pretty dark.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Parent Material or C Horizon

• is made up of slightly unbroken rock and only a little bit of organic material is found here. Plant roots are not found in this layer

• this layer is a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. This is the layer where plant roots grow in.

• a type of soil that is large in particle size and rough/gritty in texture. Its good for drainage and air passage but doesn't hold on to nutrients well.

• is made up of four basic components; minerals, organic matter, water and air.

Subsoil or B Horizon

• Soil formation takes many years, and many things affect a soil as it forms. Soil forms based on five factors. The five factors of soil formation are; Climate, Organisms, Relief, Parent Material, and Time. We often refer to soil formation as CLORPT.

• this layer is a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. This is the layer where plant roots grow in.

• this layer usually consists of clay and other particles washed down from the soil above.

• is made up of slightly unbroken rock and only a little bit of organic material is found here. Plant roots are not found in this layer