Soil Sizes
Soil Layers
Soil Formation
Soil Vocabulary
100

Which type of soil can allow water to travel through easiest? It does not hold much/any water

Sand

100

This layer lies beneath the soil and is made of hard, solid rock. 

What is the BEDROCK?

100

What is Humus made from? 

Decaying plants and/or animals

100

Decaying remains of plants and animals.

What is ORGANIC MATTER?

200

The biggest sediment size

What is SAND?
200

The layer of soil beneath the topsoil that contains mostly clay and other minerals. 

What is SUBSOIL?

200

True or False: Does weathering take a short amount of time. 

What is FALSE?

200

This tool can be used to determine how acidic or alkaline a soil is.

What is PH SCALE?

300

The smallest sediment size

What is CLAY?
300

This is the uppermost "organic" layer that consists of mostly dead plant and animal matter. [hint: another name for organic matter]

What is HUMUS?

300

What are 3 causes of weathering?

What is wind, water, ice, chemicals, plants, and/or animals?

300

These creatures are in the topsoil layer and help with the process of growing plants 

Decomposers

400

The medium sediment size

What is SILT/LOAM?

400

This layer is made up of partially weathered rock. Has no organic matter and does not sustain life. 

What is PARENT MATERIAL?

400

Which layer first needs to be broken down/weathered to create soil

Bedrock

400

What are the 3 main types of soil

Loamy, Clay, and Sand

500

Soil that is made up of equal parts of clay, sand, and silt

What is LOAM?

500

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?
500

This is the breaking down of rock.

What is WEATHERING?

500

Which of the 3 types of soil holds water the most? 

Clay
M
e
n
u