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Soil Review

Total questions: 53

Worksheet time: 58mins

Name
Class
Date
1.

Which soil type supports plant growth the best?

a)

loam soil

b)

clay soil

c)

sandy soil

d)

silty soil

2.

Which soil type will retain the most water?

a)

sandy soil

b)

clay

c)

silt

d)

gravel

3.

Which soil drains the most water?

a)

soil 1

b)

soil 2

c)

soil 3

d)

soil 4

4.

Which soil is the best for growing plants?

a)

clay

b)

silt-sand

c)

sand

d)

silt

5.

Which soil sample retains the most water?

a)

A

b)

B

c)

C

d)

D

6.

Which soil is the worst for growing plants?

a)

clay

b)

silt-sand

c)

sand

d)

silt

7.

Which soil retains the most water?

a)

soil 1

b)

soil 2

c)

soil 3

d)

soil 4

8.

Why does a soil that has only sand and gravel not support plant growth well?

a)

It holds in too much water

b)

it holds in too little water

c)

it has too many decomposers

d)

it has too many minerals

9.

Which is the correct order of weathered rocks from smallest to largest?

a)

sand, clay, silt, gravel

b)

clay, silt, sand, gravel

c)

gravel, sand, silt, clay

d)

clay, sand, silt, gravel

10.

What is loam?

a)

an even mixture of sand, silt, and clay

b)

soil made of mostly sand

c)

soil made of mostly clay

d)

a mixture of gravel and sand

11.

What does retain mean?

a)

to hold in

b)

to let fall out

c)

to decompose

d)

to dissolve

12.
What is humus?
a)
organic material rich in nutrients
b)
subsoil
c)
parent material
d)
trees
13.
What is a soil problem all farmers face?
a)
soil hardening
b)
soil erosion
c)
soil spoiling
d)
soil pollution
14.

How can farmers prevent/slow down soil erosion?

a)

Cover their crops

b)

Water the soil everyday in order to weigh it down

c)

Plant crops, plants, etc. to hold the soil in place

d)

Cut down all of the trees and crops.

15.

Afforestation is a term which means

a)

felling of trees

b)

overgrazing

c)

growing trees

d)

making dams

16.
What soil conservation is this?
a)
Cover Crops
b)
Soil Conservation
c)
Crop Rotation
17.
What is the name of Horizon 4?
a)
Subsoil 
b)
Topsoil
c)
Bedrock 
d)
Parent Rock
18.
What is the name of Horizon 3?
a)
Subsoil 
b)
Topsoil
c)
Bedrock 
d)
Parent Rock
19.
What is the name of Horizon 2?
a)
Subsoil 
b)
Topsoil
c)
Bedrock 
d)
Parent Rock
20.
What is the name of Horizon 1?
a)
Subsoil 
b)
Topsoil
c)
Bedrock 
d)
Parent Rock
21.
Which horizon is made up of partially weathered rocks?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
22.
In which horizon is most of the HUMUS?
a)
Horizon A
b)
Horizon B
c)
Horizon C
d)
Horizon D or R
23.
Decayed organic material in soil is called______.
a)
Litter
b)
Silt
c)
Humus
d)
Clay
24.
The movement of rocks and weathered materials is called_________.
a)
Chemistry
b)
Physical
c)
Weathering
d)
Erosion
25.

Using the soil triangle below state what type of soil has 33% clay, 43% silt and 24% sand.

(do not assume the arrows drawn in red, yellow and blue relate to this soil).

a)

clay

b)

sandy loam

c)

clay loam

d)

silty clay

26.

Which of the statements gives an accurate description of the proportions of the soil a X?

Sand: 12% Silt: 9% Clay: 79%

a)

Sand: 16% Silt: 30% Clay: 40%

b)

Sand: 12% Silt: 9% Clay: 79%

c)

Sand: 32% Silt: 48% Clay: 29%

d)

Sand: 22% Silt: 18% Clay: 50%

27.

What comes from the weathering of the parent material.

a)

water

b)

gasses

c)

organic matter

d)

Minerals

28.

Which type of soil is more gritty?

a)

sand

b)

silt

c)

clay

d)

loam

29.

Which type of soil has the smallest particles and drains poorly?

a)

sand

b)

silt

c)

clay

d)

loam

30.

Which type of soil is smooth feeling?

a)

sand

b)

silt

c)

clay

d)

loam

31.

Soil is composed up of air, water, mineral matter, and organic matter

a)

True

b)

False

32.

Which particle of soil is the smallest?

a)

sand

b)

silt

c)

clay

d)

Humus

33.

Which soil has the greatest permeability or quickest flow?

a)

sand

b)

silt

c)

clay

d)

humus

34.

Which soil has the least permeability or slowest flow?

a)

sand

b)

silt

c)

clay

d)

humus

35.

How much of soil is made up of water and air?

a)

25 percent

b)

50 percent

c)

100 percent

d)

5 percent

36.

A mixture of sand, silt, and clay is known as __________ and is best for farming or agriculture

a)

sand

b)

silt

c)

clay

d)

loam

37.

What type of soil material is being used for pottery or ceramics?

a)

sand

b)

silt

c)

clay

d)

humus

38.

The three main layers of soil

a)

topsoil, midsoil, and bottomsoil

b)

drysoil, wetsoil, and thicksoil

c)

topsoil, subsoil, and parent material

d)

richsoil, parent material, and subsoil

39.

What does it mean by the rate of flow of water or ability to transmit water?

a)

formation

b)

permeability

c)

texture

d)

composition

40.

What makes up humus?

a)

breakdown of organic remains

b)

removal of the topsoil

c)

weathering of the subsoil

d)

weathering of the parent material

41.

What the soil size for sand?

a)

largest particle

b)

medium particle

c)

smallest particle

42.

What is the soil size for silt?

a)

largest particle

b)

medium particle

c)

smallest particle

43.

What is the soil size for clay?

a)

largest

b)

medium

c)

smallest

44.

Why is soil important?

a)

Provides nutrients for plant growth

b)

food security

c)

filters waste

d)

all of the above

45.

What forms from parent rock?

a)

soil

b)

bacteria

c)

worms

d)

insects

46.

Are some plants adapted to grow in certain soils?

a)

True

b)

False

47.

What is the percent of organic matter in soil?

a)

25 percent

b)

45 percent

c)

50 percent

d)

5 percent

48.

What is the percent of mineral matter in soil?

a)

5 percent

b)

25 percent

c)

45 percent

d)

50 percent

49.

What soil horizon contains leaf litter and organic matter

a)

O Horizon

b)

A Horizon

c)

B Horizon

d)

C Horizon

50.

Which horizon contains unweathered parent material

a)

A Horizon

b)

B Horizon

c)

C Horizon

d)

R horizon

51.

Which Horizon contains topsoil. Seeds germinate in this "Plough Zone"

a)

O Horizon

b)

A Horizon

c)

B Horizon

d)

C Horizon

52.

Which Horizon contains subsoil. It contains mineral and clay deposits. This zone leaches off of the zone above it.

a)

A Horizon

b)

B Horizon

c)

C Horizon

d)

R Horizon

53.

Which Horizon contains little organic material or life. It consists of slightly broken up bedrock

a)

O Horizon

b)

B Horizon

c)

C Horizon

d)

R Horizon

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