Soil layers

How many layers conformed the soil?

• 3

• 5

• 6

It is the top layer, also called topsoil.

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

It has a large amount of hummus and organic matter.

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-LS2-3

It is a zone of accumulation and infiltration of minerals.

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-ESS3-1

It is made up of rock fragments and eroded rocks

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-ESS2-2

It is the lower layer of the soil

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

It consists of whole rocks, and it is the base of the other layers

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-ESS2-2

It consists of rock fragments and crystalline minerals. Plant roots reach this layer

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

It is dark and brown and mostly consists of organic material

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-ESS2-1

Worms, insects, bacteria, and fungi inhabit this layer

• The O Horizon

• The A Horizon

• The B Horizon

• The C Horizon

• The R Horizon

Tags

NGSS.MS-LS2-3