Worksheets4th Grade Soil Preview
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is not a way a rock is broken down and weathered
a)
freezing and thawing
b)
plant roots
c)
heat expansion
d)
carried away by wind
2.
What forms after a rock has been weathered over many years?
a)
streams
b)
lakes
c)
soil
d)
valleys
3.
A piece of rock from a mountaintop is found on a beach near an ocean. What is this an example of?
a)
soil
b)
weathering
c)
ice wedging
d)
erosion
4.
What is soil mostly composed of?
a)
mineral matter
b)
air
c)
organic matter
d)
water
5.
Where does organic matter in the soil come from?
a)
air
b)
water
c)
living things
6.
Which layer of soil is most important for plant growth?
a)
topsoil
b)
subsoil
c)
bedrock
7.
What gives topsoil its dark color?
a)
rock particles
b)
more water
c)
larger rock pieces
d)
decaying living things
8.
Which of the following lists the 3 types of soil?
a)
sand, topsoil, parent material
b)
sand, silt, clay
c)
topsoil, subsoil, bedrock
9.
Which type of soil holds water the best?
a)
sand
b)
silt
c)
clay
d)
bedrock
10.
Which type of soil does water flow through quickly?
a)
sand
b)
silt
c)
clay
d)
bedrock
11.
Which is a way to prevent soil from eroding?
a)
keeping it moist
b)
maintain plant cover
c)
wind breaks
d)
all of the above
12.
Sand feels___________ and is made up of ____________ rock particles.
a)
smooth, large
b)
sticky, small
c)
grainy, small
d)
grainy, large
13.
Clay feels _______________
a)
grainy
b)
sticky
c)
smooth
d)
like glass
14.
Silt feels _________________
a)
grainy
b)
smooth
c)
like sand paper
d)
sticky
15.
Which of these is a reason soil is an important resource?
a)
It helps plants grow
b)
It allows us to grow food
c)
It allows us a solid place to build homes and buildings
d)
all of the above
16.
Which of the following is and example of erosion in area?
a)
Zion's National Park and Grand Canyon
b)
Hoodoos at Bryce Canyon National Park
c)
K-Hill
d)
all of the above
17.
What percentage of the soil is mineral matter?
a)
5 %
b)
45%
c)
25%
d)
50%
18.
What percentage of the soil is organic material?
a)
5 %
b)
45%
c)
25%
d)
15%
19.
What percentage of the soil is air?
a)
5 %
b)
45%
c)
25%
d)
35%
20.
What percentage of the soil is water?
a)
5 %
b)
45%
c)
25%
d)
35%
100 %
