Soil
Soil Layers
Components of Soil
Soil, Soil, Soil
100

How many layers of soil are there?

5

100

What are the 5 layers of soil?

Humus, Topsoil, Subsoil, Parent rock, Bedrock

100

Soil is composed of rocks, ____, water and minerals.

air 

100
This is the broken down parts of plants and animals in soil.
Humus
200
What are the different types of soil?

Clay, sand, loam, and silt

200
This is the layer that sits below the subsoil and is very hard rock.
Bedrock
200

How is soil formed?

Weathering, animals, water and sunlight can all cause rocks to break down slowly over time. This creates soil. 

200
A rock is a solid material made up of ____________
minerals
300

This type of soil is sticky when wet and hard when it's dry. It is small in size.

clay

300
This is the soil that has dead plants and animals and is the top layer of soil.
Topsoil
300
This is small rock particle found in soil and on beaches.
Sand
300
Topsoil is where _________ and ___________ can be found
plants and animals
400

A person who studies soil is a ______________?

Pedologist

400
This is the layer of soil that is mainly sand and clay materials and has little matter.
Subsoil
400
This is the smallest rock particle found in soil.
Clay
400
What layer can you plant plants with?
Topsoil
500
This is a material made of tiny pieces of rock, minerals, and decayed plant and animal matter.
Soil
500
What is the order of the layers of soil?
Topsoil, Subsoil, Bedrock
500
This is a very small piece of rock; smaller than sand but larger than clay.
Silt
500
What layer may you only find roots in?
Subsoil
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