Soil Formation Lesson

What is the name of a soil that is:
30% Sand
10% Silt
60% Clay

• Clay

• Silt loam

• sand

• Sandy loam

This is determined by the relative proportions of particle sizes that make up the soil. Names for this include, loam, sandy clay, or other descriptive terms.

• Soil Permeability

• Soil pH

• Soil Profile

• Soil Texture

Soil sample that is 60% clay, 30% silt, and 10% sand has which texture? 

• clay

• clay loam

• sandy loam

• silt 

Which layer of soil are these roots growing in?

• subsoil

• topsoil

Which of the following is the largest particle in soil?

• sand

• silt

• humus

• clay

Which of the following orders sediment particle size from smallest to largest?

• silt, sand, clay

• sand, silt, clay

• clay, sand, silt

• clay, silt, sand

Where does soil come from?

• Sand and leaves.

• Weathered rock particles and humus mix with air and water

• Weathered trees mix with decomposing animals.

• Clay and silt.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Which is NOT found in all soil?

• sand

• silver

• clay

• silt

Which is NOT a factor that determines what type of soil forms in certain areas?

• animals

• slope

• climate

• types of plants

How long does it take soil to form?

• ten years

• one hundred thousand years

• one hundred years.

• hundreds to thousands of years