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Soil

Total questions: 25

Worksheet time: 51mins

Name
Class
Date
1.

Q. Soil is made of

a)

weathered rocks and minerals

b)

dead plants and animals

c)

air and water

d)

all of the above

2.
What is HUMUS made from?
a)
Chick-Peas
b)
The remains of decayed plants and animals
c)
Beans
d)
Cheese
3.

Are there minerals in soil?

a)

Yes

b)

No

4.
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
5.
Many plants cannot grow in sandy soil. Why is this true?
a)
Sandy soil does not hold enough water.
b)
Oxygen cannot pass through sandy soil.
c)
Roots cannot easily push through clay soil.
d)
Sandy soil has too many nutrients.
6.
Humus is important because...
a)
It contains toxic waste
b)
It contains acids and bases
c)
It breaks down rocks
d)
It helps plants grow
7.

Which of the following processes will most likely contribute to the development of soil?

a)

Volcanic eruptions that make new land

b)

Building up of snow in very cold areas

c)

Migration of animals to warmer climates

d)

Breaking down of rock by wind, water, and ice

8.

Soil is composed of all of these natural materials EXCEPT

a)

weathered rock

b)

plant matter

c)

plastic substances

d)

animal remains

9.
Which type of soil can hold the greatest amount of water?
a)
sand
b)
silt
c)
clay
d)
loam
10.

Which soil would retain the least amount of water?

a)

gravel

b)

silt

c)

sand

d)

clay

11.

Plants get the minerals they need to flourish from:

a)

Sun

b)

Rain

c)

Clean air and carbon dioxide

d)

Soil

12.

Plants need the following except one

a)

water

b)

air

c)

light

d)

pizza

13.

Where do plants get minerals from

a)

soil

b)

rain

c)

sun

d)

animals

14.

Q. 

Which soil do plants grow best in?

a)

clay

b)

silt

c)

loam

d)

sand

15.

What are the animals that live in soil?

a)

owl and parrot

b)

microbes, mole and earthworm

c)

tigers and lions

d)

snakes

16.
This type of soil is sticky when wet and hard when dry. 
a)
clay
b)
silt
c)
sand
d)
gravel
17.
This type of soil is best for plant growth. 
a)
rock
b)
sand
c)
loam
d)
clay
18.
This type of soil is made of tiny pieces of rock. 
a)
sand
b)
clay
c)
humus
d)
loam
19.
This type of soil is carried by water and left as sediment. 
a)
bedrock
b)
loam
c)
silt
d)
clay
20.
The four types of soil are _____. 
a)
humus, gravel, pebbles, sand
b)
sand, silt, clay, loam
c)
sand, rock, pebbles, granite
d)
sand, clay, bedrock, topsoil
21.
What physical property of soil determines if it retains water?
a)
color
b)
particle size
c)
texture
d)
weight
22.
No water stays in this when poured through. 
a)
loam
b)
clay
c)
gravel
d)
topsoil
23.
Loam is a mixture of clay, silt, and sand. 
a)
True
b)
False
24.
It is important for soil to retain water to 
a)
withstand weathering
b)
erode more slowly
c)
help plants to grow
d)
keep it from being dry
25.
If soil particles are large, then 
a)
more water is retained
b)
less water is retained