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Soil Forms

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.
Soil is composed of all of these natural materials EXCEPT
a)
weathered rock
b)
plant matter
c)
plastic substances
d)
animal remains
2.
The organic matter in soil comes mostly from plants. Which of the following locations would most likely produce soil with the greatest amount of organic matter?
a)
A desert with very high temperatures
b)
A prairie with lots of grasses and flowers
c)
A mountain with extremely cold winds
d)
A river with quickly moving water
3.
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
4.
Plants and animals become part of soil when they -- 
a)
Die and Decay
b)
Produce offspring
c)
Grow and Develop
d)
Take in nutrients
5.
All of the following are plant remains EXCEPT - 
a)
Dead leaves
b)
Dried twigs
c)
Sand Particles
d)
Seed covers
6.
One component of soil is decayed plant and animal remains, but the major component of soil is - 
a)
Fossil Fuels
b)
Weathered rocks
c)
Iron ore
d)
Salt water
7.
The weathering of rocks into small pieces forms what natural resource?
a)
Minerals
b)
Water
c)
Coal
d)
Soil
8.

Rocks near the ocean get broken into smaller pieces. What causes this change to these rocks?

a)

Leaves falling from trees

b)

Clouds forming in the sky

c)

Water crashing against the rocks

9.
Rock is broken into smaller and smaller pieces over time by all of the following EXCEPT - 
a)
Flowing water
b)
Blowing wind
c)
Cooling sand
d)
Moving Ice
10.
A student made a mixture of sand, tiny rocks, small twigs, and some leaves. This student has modeled - 
a)
how rocks change over time
b)
the life cycles of plants
c)
the formation of soil
d)
how landforms are created
11.
How do plants contribute to the formation of soil? Plants - 
a)
cover the soil and shade it from sunlight
b)
die, decompose and become part of the soil
c)
use soil to grow and develop over time
d)
support the animal life in the soil
12.

In which of the following soil layers is humus mostly found?

a)

A horizon

b)

B horizon

c)

C horizon

d)

D horizon

13.

You have just analyzed a 100 g soil sample. You have organized your findings in the data table. Which two materials make up at least 50 percent of the composition of your soil sample?

a)

air and silt

b)

silt and sand

c)

air and water

d)

clay and organic matter

14.

It can take a long time for soil to form. Which are the primary factors that affect soil formation?

a)

rainfall, temperature, wind, time, and plants

b)

time, climate, topography, plants, and animals

c)

parent rock, sunshine, plants, animals, and bacteria

d)

climate, parent rock, topography, living things, and time

15.
What type of process forms soil?
a)
weathering
b)
erosion
c)
deposition
d)
compaction
16.
What is humus?
a)
soil
b)
organic matter
c)
loam
d)
minerals
17.
What is the movement of soil from one place to another?
a)
weathering
b)
deposition
c)
discharge
d)
erosion
18.
Weathering and erosion are the same thing.
a)
True
b)
False
19.
Waves dropping sand on the beach is called?
a)
Weathering
b)
Erosion
c)
Deposition
d)
Movement
20.
Weathering occurs fastest in
a)
cold, dry climates
b)
cold, wet climates
c)
hot, dry climates
d)
hot, wet climates

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