Soil

Soil ^🌱

What is soil?

• a material formed from tiny pieces or particles of rocks

Types of soil

• sand

• silt

• clay

• humus

• loam

Multiple Choice

What material is soil mostly made of?

• nutrients

• bits of bone

• shells

• pieces of rock

Sand

• Soil with the LARGEST particles

• There are large spaces between the particles.

• The large particles and spaces make it difficult for sand to absorb water.  

• The water leaves sand quickly.

• Sand can be different colors because it is made up of different colored rocks. 

• Sand feels rough or gritty.

Multiple Choice

Which type of soil does water quickly pass through?

• sand

• clay

• humus

• silt

Multiple Choice

Why are sand particles different colors?

• because sand is made from silt, clay, and loam

• because the shells are brightly colored and rocks are dark

• because the particles come from different colored rocks

• because water changes the color of sand

Multiple Choice

Which statement is not true about sand?

• sand has small particles that feel smooth

• water quickly passes through sand particles

• sand particles feel gritty and rough

• sand has the largest particles of rock

Multiple Choice

Why does sand not hold water well?

• sand has too many bits of shells in it

• the rocks in the sand are too small to hold water

• the large particles allow water to flow through quickly

• sand is made of silt which does not hold water

Clay

• soil with the smallest rock particles

• holds water easily

Multiple Choice

Which soil is formed with the smallest rock particles?

• loam

• sand

• silt

• clay

Silt

• Has medium sized particles

• The particles in silt are smaller than sand, but larger than clay

Multiple Choice

What is true about silt?

• silt has larger particles than sand and is sticky

• silt has smaller particles and holds water better than sand

• silt is made from humus and loam

• plants grow well in silt because it holds nutrients

Loam

• soil that is made from sand, silt, clay, and humus mixed together

• Plants grow best in loam soil because it holds water well

Multiple Choice

Which soil do plants grow best in?

• clay

• silt

• loam

• sand

Humus

• is soil that is made of decayed or decomposing plants and animals

• very dark and crumbly

Multiple Choice

Humus is made up of what materials?

• small bits of shells and bones

• decomposing plants and animals

• quartz and feldspar minerals

• silt and clay

Great job! Keep practicing. We will have a quiz tomorrow!

Multiple Choice

Humus is made up of what materials?

• small bits of shells and bones

• decomposing plants and animals

• quartz and feldspar minerals

• silt and clay