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soil ph

Total questions: 16

Worksheet time: 11mins

Name
Class
Date
1.

what is soil ph

a)

SOIL pH IS THE INDICATION OF THE ALKALINITY OR ACIDITY OF SOIL

b)

IT IS BASED ON THE MEASUREMENT OF pH WHEN IN BALANCE(pH 7) THE SOIL IS SAID TO

BE NEUTRAL

c)

IT IS BASED ON THE MEASUREMENT OF pH WHEN IN BALANCE(pH 9) THE SOIL IS SAID TO

BE NEUTRAL

2.

What is soil?

a)

It is the loose material in which plants can grow in the upper layer of Earth.

b)

It is the leaf that grows on the plant.

c)

It is the food that can be found inside the seed.

3.

Humus is:

a)

the part of soil made up of decayed parts of once-living things.

b)

a dip that is made of garbanzo beans.

c)

a bone that can be found in the upper arm.

d)

a sound people make when their lips are together.

4.

pH is important because

a)

it determines a soil's suitability for life

b)

it determines whether nutrient elements are at optimal, deficient, or toxic levels

c)

it determines the fate of soil pollution

d)

all answers are correct

5.

What is the pH range which provides for the optimal availability of plant essential nutrients (elements)?

a)

12.3-14.2

b)

6.3-7.2

c)

2.3-3.3

d)

none of the answers are correct

6.

A solution with a pH greater than 7 would be considered:

a)

neutral

b)

alkaline/basic

c)

acidic

7.
The pH of freshwater is...
a)
4
b)
10
c)
7
d)
8
8.
On the universal pH scale, which color is neutral?
a)
Blue
b)
Red
c)
Green
d)
Maroon
9.
Which substance has a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
10.
Is this substance acidic, alkali, or neutral?
a)
Acidic
b)
alkali
c)
Neutral
11.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
12.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
d)
eggs
13.

Which animal is an example of an invertebrate that we might see here on campus?

a)
b)
c)
d)
14.

What does pH tell you about the soil?

a)

How acidic the soil is.

b)

How basic the soil is.

c)

How neutral the soil is.

d)

All of these answers!

15.
This piece of pH paper has been dipped into:
a)
An acid
b)
A base
c)
A pH-neutral substance
d)
A buffer
16.
Which of the following substances is basic?
a)
soda
b)
lemon juice
c)
soap
d)
vinegar