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Soil Review

Total questions: 35

Worksheet time: 33mins

Name
Class
Date
1.
What living things are in soil?
a)
earthworms
b)
sand
c)
glass
d)
minerals
2.
The dark top layer of soil is called ______.
a)
subsoil
b)
bedrock
c)
topsoil
d)
understory
3.
What does humus contain?
a)
sand
b)
glass
c)
clay
d)
decayed plants and animals
4.
The layer of soil just under the topsoil is called _______.
a)
humus
b)
clay
c)
subsoil
d)
rock
5.
Under the subsoil layer is a layer of rock called _______.
a)
bedrock
b)
soil
c)
topsoil
d)
loam
6.
Which of the following best describes soil erosion?
a)
A.  the breakdown of soil 
b)
A.  the improvement of soil
c)
A.  the addition of soil
d)
A.  the movement of soil by wind or water
7.
Which of the following is the largest particle in soil?
a)
sand
b)
silt
c)
humus
d)
clay
8.
Soil is made of
a)
weathered rocks and minerals
b)
dead plants and animals
c)
air and water
d)
all of the above
9.
Where does most of the water go when it rains?
a)
in the ocean
b)
in the rivers
c)
in the gutters
d)
it absorbs into the soil
10.
The breaking down of rocks into smaller pieces.
a)
erosion
b)
weathering
c)
sediment
d)
sand
11.
The movement of weathered rock and soil
a)
weathering
b)
erosion
c)
sand
d)
silt
12.
Which of the following is NOT one of the three types of soil?
a)
clay
b)
sand
c)
silt
d)
mud
13.
_______ 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
14.
Are there minerals in soil?
a)
Yes
b)
No
15.
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
16.
Soil conservation includes all of the following EXCEPT_______.
a)
Desertification
b)
Contour plowing
c)
Terracing
d)
Crop rotation
17.
Which type of soil conservation strategy is being  used in this picture?
a)
windbreakers
b)
contour farming
c)
planting of vegetation
d)
terracing
18.
Farmer Joe plowed curved rows that followed the shape of the land in order to create water breaks, what method did he use?
a)
contour plowing
b)
crop rotation
c)
subsoil preservation
d)
terrace farming
19.
Soil conservation includes all of the following EXCEPT_______.
a)
Desertification
b)
Contour plowing
c)
Terracing
d)
Crop rotation
20.

Maintaining the fertility of the soil by preventing erosion and nutrient loss

a)

Soil pollution

b)

Soil conservation

c)

Weathering

d)

Soil ploughing

21.

The removal of substances that can be dissolved from rock and soil due to water passing through 

a)

erosion

b)

leaching

c)

polluting

d)

terracing

22.

A layer of rock that has never been worn down

a)

parent rock

b)

subsoil

c)

topsoil

d)

bedrock

23.

In what part of the soil profile is the organic material found in?

a)

C horizon, deepest layer of soil

b)

B horizon, material washed down from above

c)

A horizon, upper layer of soil

d)

layer of dead leaves on the surface of the ground.

24.

Weathering is the physical or chemical breakdown of what?

a)

water

b)

rocks

c)

humus

d)

chemicals

25.

What's a synonym for decomposed organic material?

a)

Dirt

b)

Soil

c)

Humus

d)

Mineral

26.
What is the layer of soil just below the topsoil?
a)
soil
b)
subsoil
c)
topsoil
d)
terrace farming
27.

Which soil horizon is on the bottom?

a)

topsoil

b)

subsoil

c)

bedrock

d)

bottomsoil

28.
What do we call the layers of soil?
a)
Deposits
b)
Horizons
c)
Minerals
d)
Rocks
29.
_______ 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
30.
Place the following layers in order from top to bottom: bedrock, topsoil, subsoil, organic, parent material.
a)
Organic, Topsoil, Subsoil, Parent Material, Bedrock
b)
Organic, Topsoil, Parent Material, Subsoil, Bedrock
c)
Topsoil, Organic, Subsoil, Parent Material, Bedrock
d)
Topsoil, Organic, Parent Material, Subsoil, Bedrock
31.

Medium soil particle, smooth and powdery, making water and air difficult to pass through when packed down.

a)

sand

b)

silt

c)

loam

d)

clay

32.

The largest particle of soil, rough and gritty. It is good for drainage because it dries quickly.

a)

sand

b)

silt

c)

loam

d)

clay

33.

The name for the B horizon.

a)

topsoil

b)

subsoil

c)

partially weathered bedrock

d)

bedrock

34.

The name for the A horizon.

a)

topsoil

b)

subsoil

c)

partially weathered bedrock

d)

bedrock

35.

The soil horizon that is made of partly weathered bedrock

a)

A horizon

b)

B horizon

c)

C horizon

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