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Soil and its Properties

Total questions: 20

Worksheet time: 34mins

Name
Class
Date
1.
Soil is made of
a)
weathered rocks and minerals
b)
dead plants and animals
c)
air and water
d)
all of the above
2.
The layer of soil which the topsoil is found.
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
3.

Which soil horizon is contains decomposed plants and animals?

a)

A Horizon

b)

B Horizon

c)

C Horizon

d)

O Horizon

4.

Which soil component makes up about 25% of a loamy soil?

a)

Water

b)

Organic Matter

c)

Air

d)

Water & Air

5.

Which soil component makes up about 5% of a loamy soil?

a)

Water

b)

Organic Matter

c)

Air

d)

Minerals

6.

Soil is formed by the breaking down of rocks by the action of wind, water and climate. This process is called

a)

Humification

b)

Weathering

c)

Soil erosion

d)

None of the above

7.
Which of the following is the correct order of soil particles in order of increasing particle size?
a)
clay-sand-silt
b)
sand-clay-silt
c)
silt-clay-sand
d)
clay-silt-sand
8.
When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?
a)
sand
b)
silt
c)
clay
d)
humus
9.

Which of the following describes a soil horizon?

a)

The ability of soil to grow plants

b)

A layer of soil

c)

A slice of soil showing all of its layers

d)

Layers made up of several soil profiles

10.

What is soil?

a)

A mixture of rocks, clay, and air

b)

A mixture of weathered rock, organic matter, air, and water

c)

A mixture of dirt and bacteria

d)

A mixture of chemicals and fertilizers

11.

The first layer of soil, called the A horizon is also known as?

a)

Bedrock

b)

Parent Material

c)

Topsoil

d)

Subsoil

12.

Which type of soil drains the slowest?

a)

silt

b)

clay

c)

sand

d)

loam

13.
Which of the following is NOT one of the three types of soil?
a)
clay
b)
sand
c)
silt
d)
mud
14.
_______ is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt.
a)
loam
b)
humus
c)
soil
d)
dirt
15.
Ellen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?
a)
clay
b)
sand
c)
silt
d)
humus
16.
You dig a small hole in the soil and the next day it rains. The hole fills with water, but does not empty even after several days of dry weather. What is the soil mostly made of?
a)
clay
b)
sand
c)
humus
d)
silt
17.
Which horizon is made up of partially weathered rocks?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
18.
In which horizon is most of the HUMUS?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
19.
Loam is 
a)
soil made of about equal parts of clay, sand and silt.
b)
soil that contains more sand than silt or clay.
c)
soil that contains only clay.
d)
soil that has no silt.
20.
The MAIN  thing Decomposers do for the the soil is the following:
a)
Store moisture
b)
Burrow deep in the soil
c)
Make space for air and water
d)
Break down and digest dead organisms

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