WorksheetsSoil, Weathering, Erosion Test (Geological Events 3)
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Weathering is the physical or chemical breakdown of
a)
water
b)
humus
c)
rocks
d)
minerals
2.
Chemical weathering changes a rock's
a)
age
b)
chemical composition
c)
exfoliation
d)
pore space
3.
A fast flowing river wears away small particles from the rocks in its bed a little at a time. This is an example of
a)
exfoliation
b)
abrasion
c)
desertification
d)
rotation
4.
Which of the following affects the rate at which rock weathers?
a)
surface area
b)
color
c)
luster
d)
hardness
5.
A rock will weather and turn into soil more quickly in a hot, wet environment than in a cold, dry environment. This is an example of how
a)
climate affects soil formation
b)
climate affects rock formation
c)
landforms affect soil formation
d)
landforms affect rock formation
6.
Most of the matter that breaks down to form humus comes from
a)
minerals
b)
plants
c)
rocks
d)
clay
7.
Which of the following statements about soil is true?
a)
Soil is an unlimited resource, we will never run out.
b)
Soil supports the growth of plants.
c)
Soil naturally forms at a rapid rate.
d)
Soil forms at the same rate everywhere on Earth.
8.
Once every few years, a farmer plants bean crops instead of wheat for her fields. The farmer is practicing soil conservation through
a)
terracing
b)
conservation tillage
c)
crop rotation
d)
windbreaking
9.
The downhill movement of rock or soil is called
a)
weathering
b)
mass wasting
c)
deposition
d)
mass drainage
10.
Drainage basins are areas of land from which water drains into a stream system. The borders of drainage basins are called
a)
divides
b)
meanders
c)
valleys
d)
sinkholes
11.
Floodplains usually form
a)
in low areas
b)
on divides
c)
on mountaintops
d)
in caverns
12.
Water that moves underground can form
a)
till
b)
sandbar
c)
caverns
d)
mountains
13.
Beneath the water surface, waves and currents build up ridges of sand called
a)
longshore dunes
b)
barrier islands
c)
sandbars
d)
glaciers
14.
Which layer of soil would be affected most by weathering and erosion?
a)
top soil
b)
humus/organic matter
c)
parent rock
d)
subsoil
15.
Why are the top layers of the soil so important?
a)
most minerals and nutrients are located here
b)
rocks and minerals are located here
c)
only minerals are located here
d)
because the soil particles here are so small
16.
What causes soil to decompose?
a)
rocks and minerals
b)
fungi and bacteria
c)
inorganic material
d)
nutrients
17.
What is organic matter?
a)
minerals
b)
sand, silt, clay
c)
the remains of once living organisms
d)
air
18.
The unweathered material that soil is formed from is called...
a)
humus
b)
parent material
c)
inorganic material
d)
weathering
19.
A strong wind slows and drops the particles it is carrying. This is an example of...
a)
deposition
b)
weathering
c)
mass wasting
d)
erosion
20.
The process by which Earth material is picked up and moved from one place to another.....
a)
drainage
b)
erosion
c)
gravity
d)
density
100 %
