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Soil Science (Ag Foundations)

Total questions: 65

Worksheet time: 38mins

Name
Class
Date
1.

This term indicates the relative content of particles of various sizes, such as sand, silt and clay in the soil.

a)

texture

b)

type

c)

pH

d)

nutrient content

2.

Which particle is the most porous and allows for the most water to travel between them?

a)

silt

b)

sand

c)

clay

d)

loam

3.

This refers to a type of water that can escape from the soil.

a)

capillary

b)

hygroscopic

c)

flowing

d)

gravitational

4.

What type of soil water forms as a very thin film surrounding soil particles and is generally not available to the plant? It is bound so tightly to the soil by adhesion properties that very little of it can be taken up by plant roots.

a)

capillary

b)

gravitational

c)

hygroscopic

d)

flowing

5.

What type of soil water is used by plants?

a)

hygroscopic

b)

capillary

c)

gravitational

d)

all types of soil water

6.

Which of the following is not a primary nutrient required for plant growth?

a)

Calcium

b)

Phosphorus

c)

Potassium

d)

Nitrogen

7.

Which of the following are the macronutrients that can be absorbed atmospherically?

a)

Phosphorus, Nitrogen and Carbon

b)

Carbon, Nitrogen, Potassium

c)

Nitrogen, Oxygen and Carbon

d)

Carbon, Oxygen, Hydrogen

8.

Which element makes plant green?

a)

Potassium

b)

Nitrogen

c)

Phosphorus

d)

Magnesium

9.

Phosphate deficiency is seen by what coloring of the plant?

a)

purple

b)

bluish

c)

brown

d)

yellow

10.

Which primary plant nutrient promotes strong root growth in young seedlings?

a)

Phosphorus

b)

Potassium

c)

Nitrogen

d)

Iron

11.

This is a corn leaf. It shows a sign of nutrient deficiency where the leaves turn yellow but the veins stay green. What nutrient deficiency is it?

a)

Nitrogen

b)

Iron

c)

Phosphorus

d)

Potassium

12.

The photo of a plant shows that the leaves turn orange and yellow from the outside in. Which primary nutrient is lacking when a plant shows signs like this?

a)

Potassium and Phosphorus

b)

Potassium

c)

Nitrogen

d)

Phosphorus

13.

· What do the three numbers found on a fertilizer label represent?

a)

Guaranteed analysis; percentage of Nitrogen, Phosphorus, Potassium found in the bag

b)

Guaranteed analysis; percentage of Calcium, Phosphorus, Potassium found in the bag

c)

Guaranteed analysis; percentage of Nitrogen, Potassium, Phosphorus found in the bag

d)

Guaranteed analysis; percentage of Iron, Manganese, Potassium found in the bag

14.

This land is capable of a wide variety of agricultural uses that involve regular cultivation where in fact, the easiest land to farm. Which land and soil class does it refer to?

a)

Land and Soil Capability Class 8

b)

Land and Soil Capability Class 3

c)

Land and Soil Capability Class 2

d)

Land and Soil Capability Class 1

15.

Which land class is hardest to farm?

a)

Class 1

b)

Class 2

c)

Class 5

d)

Class 8

16.

What land capability class has severe restrictions but is still suitable for cultivation with careful management?

a)

Class 4

b)

Class 5

c)

Class 7

d)

Class 8

17.

If your soil sample from your farm or garden has 25% sand, 40% silt and 35%. What is the texture of your soil?

a)

clay

b)

clay loam

c)

loam

d)

sandy clay

18.

If your soil sample has 35% sand,40% silt and 25% clay, identify the soil texture using the soil texture triangle provided to you.

a)

silt

b)

clay loam

c)

loam

d)

silt loam

19.

What land class that restricts the use of plants?

a)

Class 2

b)

Class 3

c)

Class 5

d)

Class 7

20.

What are the main components of soil?

a)

Water

b)

Air

c)

Bedrock

d)

Minerals

e)

Organic Matter

21.

What are the 3 primary soil particles?

a)

Sand

b)

Silt

c)

Clay

d)

Gravel

22.

Which soil particle is the largest?

a)

Sand

b)

Silt

c)

Clay

23.

Which particle reduces the water holding capacity of soil?

a)

Sand

b)

Silt

c)

Clay

24.

Which of the following is a characteristic of silt?

a)

Rough, gritty feeling

b)

Flat/Platy shape

c)

Reduces water holding capacity

d)

Improves water holding capacity

25.

Which soil particle is the smallest?

a)

Sand

b)

Silt

c)

Clay

26.

The soil triangle is used to determine the soil texture and percentages of sand, silt and clay.

a)

True

b)

False

27.

What is the soil texture of a 30% sand, 40% silt, 30% clay soil?

(a)  

28.

What is the soil texture of a 50% sand, 40% clay, 10% silt soil?

(a)  

29.

What is the soil texture of a 30% sand, 50% clay, 20% silt soil?

(a)  

30.
soil is a living __________ system at the interface of air and rock. 
a)
Active 
b)
Natural Occurring Dynamic 
c)
Free Range
d)
Transportable 
31.
One key role of soil is to 
a)
Provides support and nutrients to plants
b)
Eat 
c)
Utilized for fuel 
d)
Be your best friend 
32.
What is a macro-nutrient 
a)
An element that is need in large quantity 
b)
A nutrient needed in low quantity 
c)
An element that has a large atomic mass
d)
A nutrient that is essential for HUMAN life 
33.
What is a micro-nutrient 
a)
An element that is need in large quantity 
b)
A nutrient needed in low quantity 
c)
An element that has a large atomic mass
d)
A nutrient that is essential for HUMAN life 
34.
If one nutrient is absent or toxic then what could be happen to a plant
a)
Alter the cellular structure of the plant resulting in defects or deficiencies 
b)
nothing will happen to the plant
c)
Possible create a new variation of that plant due to the plant stress
d)
The plant could join a union and protest the maltreatment 
35.
If a soil or solution is alkaline then it is 
a)
Above 8 PH
b)
Near 7 PH
c)
Below 6 PH
36.
If a soil or solution is acidic then it is 
a)
Above 8 PH
b)
Near 7 PH
c)
Below 6 PH
37.
Humus
a)
Top layer semi-decaying matter
b)
Organic matter from broken organisms
c)
humorous 
d)
Plural for humans
38.

What is the name of the TOP layer of soil, where plants and nutrients are found?

a)

bedrock

b)

silt

c)

topsoil

d)

subsoil

39.

Choose all correct answers.


Soil

a)

is a mixture of tiny rock particles.

b)

is minerals from decayed plants and animals.

c)

kills living things.

d)

provides nutrients to plants.

e)

is always brown.

40.

Choose all correct answers.


Weathering is when

a)

rocks break down or break apart.

b)

the ocean water comes in for high tide.

c)

tree roots cause cracks.

d)

ice and water break apart pavement.

41.

The movement of soil and rock by wind and water is called

a)

humus

b)

decay

c)

erosion

d)

natural resources

42.

Humus is

a)

decayed matter in soil

b)

silt

c)

clay

d)

bedrock

43.

Loose soil with large grains and does not hold water well is called

a)

dirty soil

b)

silt

c)

clay

d)

sandy soil

44.

A material that plants and animals need to live and grow is called

a)

food

b)

nutrient

c)

calorie

d)

soil

45.

Soil that is tightly packed, smooth with tiny grains and holds water well is called

a)

sandy soil

b)

silt

c)

clay

d)

mud

46.

Choose all correct answers.


Subsoil

a)

contains some minerals washed down from the top.

b)

will only allow large tree roots to grow.

c)

a mixture of rock and soil.

d)

is the middle section of soil.

47.

Choose all correct answers.


Bedrock

a)

is the bottom layer of soil.

b)

is the soil where plants and roots are found.

c)

contains lots of plant nutrients.

d)

is solid rock with no plant roots or nutrients.

48.

It is the vertical section of the soil from the ground surface downwards to where the soil meets the underlying rock.

a)

Soil profile

b)

Soil horizon

c)

Soil layer

49.

All are types of soil, except...

a)

Sand

b)

Clay

c)

Loam

d)

Silt

50.

Which particle reduces the water holding capacity of soil?

a)

Sand

b)

Silt

c)

Clay

51.

The soil triangle is used to determine the soil texture and percentages of sand, silt and clay.

a)

True

b)

False

52.

Humus comes from dead ….... and ….........

a)

plants and animals

b)

plants and sand

c)

animals and snow

53.

Which type of soil conservation strategy is being used in this picture?

a)

windbreakers

b)

contour farming

c)

planting of vegetation

d)

terrace farming

54.
What soil conservation is this?
a)
Cover Crops
b)
Soil Conservation
c)
Crop Rotation
55.

why is it important to have soil conservation

a)

save the soil

b)

prevent erosion

c)

prevent another dust bowl

d)

all of the above

56.

which of the following is a soil conservation method

a)

Deworming

b)

Deforestation

c)

green manuring

d)

bush burning

57.
What do farmers call crops that they plant to cover loose soil so that it does not erode?
a)
extra crops
b)
erosion crops
c)
cover crops
d)
protective crops
58.
Which of the following is NOT one of the three layers of soil?
a)
topsoil
b)
undersoil
c)
subsoil
d)
bedrock
59.

Which soil is best for gardening?

a)

sand

b)

loam

c)

clay

d)

plants

60.

Which type of soil is best at retaining water?

a)

clay

b)

loam

c)

silt

d)

sand

61.

sand

a)

absorb and continue to hold

b)

the maximum amount something can hold

c)

soil that is made up of small particles and retains water

d)

soil that is made up of large particles and does not retain water

62.

Soil is..

a)

dead

b)

alive

63.

Which is NOT an important micro-organism in soil?

a)

Bacteria

b)

Fungi

c)

Mineral

d)

Worms

64.

Susie and Chris decide to have a contest to see who's tomatoes can grow the biggest. Susie uses sand for her plant and Chris uses loam for his. Did Susie win the contest?

a)

Yes, because sand has the largest particles

b)

No, because sand doesn't retain water

c)

No, because sand holds too much water

d)

Yes, because sand doesn't hold water

65.

Millie and Neks don't know which soil has the largest particles. Which soil has the biggest particles?

a)

Silt

b)

Loam

c)

Sand

d)

Clay

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