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WorksheetsSoil Review
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of these particles in soil has the most water retention?
a)
clay
b)
gravel
c)
silt
d)
sand
2.
How does nutrients necessary for plant growth get in the soil?
a)
Soil absorbs sunlight.
b)
Soil is exposed to oxygen.
c)
Organic matter is decayed in the soil
d)
Water flows through the soil.
3.
The texture of soil depends on the:
a)
mass
b)
water in the soil
c)
plants growing in the soil
d)
composition of the soil
4.
Some plants need to be in an environment where water drained easily. What type of soil would benefit these plants?
a)
sand
b)
shale
c)
clay
d)
silt
5.
When a microorganism depletes oxygen in soil, the soil becomes:
a)
dense
b)
dried out
c)
anaerobic
d)
aerobic
6.
Which element cause soil to appear red?
a)
calcium
b)
iron
c)
silicon
d)
nickel
7.
The finest grain soil is richest in:
a)
clay
b)
humus
c)
sand
d)
iron
8.
A plant that needs well drained soil would grow best in soil made of mostly of:
a)
clay
b)
humus
c)
silt
d)
sand
9.
In order to increase water retention, you should add the following to soil:
a)
organic matter
b)
loose gravel
c)
nitrogen pellets
d)
coarse sand
10.
The best soil mixture for plant growth and drainage is:
a)
silt, pebbles, and clay
b)
sand, rocks, and clay
c)
humus, clay, and sand
d)
clay, silt, and rocks
11.
What is the source of the organic matter needed for most fertile soils?
a)
moving water
b)
eroded sand
c)
decaying plants
d)
weathered bedrock
12.
Which animal would best help the soil hold water?
a)
earthworms making tunnels under the surface
b)
cattle making depressions with their hooves
c)
horses making trenches when the gallop
d)
sheep pulling up plants by their roots
13.
Topsoil is considered to be most fertile when it has:
a)
low PH level
b)
low sand content
c)
high organic matter level
d)
high parent rock material level
14.
If soil is permeable,
a)
water cannot flow through it.
b)
water easily flows through it
c)
it contains many minerals
d)
it contains few minerals
15.
Which type of soil has the least capacity for holding water?
a)
silt
b)
sand
c)
humus
d)
clay
16.
Which is an example of a mixture?
a)
ice
b)
soil
c)
silver
d)
oxygen
17.
Which environment would most likely have rich, fertile soil?
a)
a flood plain
b)
a dessert plain
c)
a mountain peak
d)
a coastal plain
18.
What is a good indication that soil contains nutrients?
a)
texture
b)
color
c)
amount of sand
d)
amount of clay
19.
What biotic factor would limited soil fertility and thickness?
a)
preciptation
b)
decayed plants
c)
cold temperatures
d)
shade from mountains
20.
Soil porosity is formed by everything except:
a)
movement of plant roots
b)
movement of worms and insects
c)
the size of the grain
d)
the color of the soil
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