CHAPTER 12: FRESH
WATER
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Illustration
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The process of supplying water to
areas of land to make them suitable
for growing crops is called:
A. conservation
B. condensation
C. Irrigation
D. Evaporation
Irrigation
What is the source of energy for the
water cycle?
A. Gravity
B. Precipitation
C. The oceans
D. The sun
Sun
What is a habitat?
A. a place where an organism lives
B. one part of the water cycle
C. where water is supplied to make crops
grow
D. a place where groundwater is found
A place where an organism lives
A high coliform count is an indicator that
the water may contain
A. high levels of minerals
B. high pH levels
C. acids
D. large numbers of disease-causing
organisms
Large numbers of disease-causing
organisms
The water in an artesian well rises because
of pressure in a(n)
A. watershed
B. reservoir
C. aquifer
D. point source
Aquifer
The layer of rocks and soil with pores that
contain air as well as water is called the
A. unsaturated zone
B. water table
C. saturated zone
D. divide
Unsaturated zone
The process of passing water through
screens to remove solid particles is called
A. precipitation
B. filtration
C. coagulation
D. concentration
Filtration
Rain, snow, sleet, and hail are forms of
__________.
Precipitation
Most water in the atmosphere is
invisible _________.
Water vapor
A small, shallow body of water in which
sunlight can reach to the bottom is a(n)
_________.
Pond
A wetland in a cool, northern area where
mosses grow in acidic water is called a(n)
__________.
Bog
Water cannot pass easily through
materials that are __________.
Impermeable
When water is carried into fields in open
irrigation ditches, much of it is lost to
__________.
Evaporation
Any substance that causes water
pollution is called a(n) ___________.
Pollutant
More than 97% of the water on Earth is
fresh water. T or F (if F make it true)
F; salt water
The water cycle renews the supply of fresh
water on Earth. T or F (if F make it true)
True
A tributary is a place where groundwater
bubbles or flows to the surface. T or F (if F
make it true)
F; spring
The amount of calcium and magnesium in
water determines the water’s pH. T or F (if F
make it true)
F; hardness
In water treatment, chlorination removes
particles from water by getting them to stick
to sticky globs called flocs. T or F (if F make
it true)
F; coagulation
Water quality is a measure of the
substances in water besides water
molecules. T or F (if F make it true)
True
A lake that stores water for human use is
called a watershed. T or F (if F make it true)
F; reservoir
What is added to drinking water to kill
bacteria and other organisms?
A. sand
B. alum
C. chlorine
D. dissolved solids
Chlorine
Using a resource wisely so that it will not be
used up is called
A. filtration
B. conservation
C. distillation
D. coagulation
Conservation
Describe the water cycle.
The water cycle is the continuous process
by which water moves through the living
and nonliving parts of the environment. It
includes the processes of evaporation,
condensation, and precipitation.
What sources of water on Earth are
available for human use? Explain.
Household purposes, and agriculture
Household purposes: washing, laundry
Agriculture: irrigation
What sources of water on Earth are
available for human use? Explain. Industry,
transportation, and recreation.
Industry: product manufacturing
Transportation: boating
Recreation: swimming
What is the purpose of drinking-water
treatment?
Drinking water treatment makes the
water safe and appealing to drink.
Describe a typical treatment process at
a water treatment plant.
The processes in such treatment include:
filtration, coagulation, chlorination,
aeration, and the possible addition of
fluoride and other chemicals.
What is this a picture of? Explain.
Divide – a ridge of land that separates
one watershed from another.
Is this an example of a point source of
pollution or a nonpoint source? Explain.
It is an example of a point source because a
specific source of pollution can be
identified.
What is occurring in the illustration that
could affect a drinking-water supply?
Chemicals from the factory are entering
the river.
What could a company do to stop the harm
being done to the water in the river?
The company could stop the flow of
chemicals through the pipe and dispose of
them in a safe way.
What is this a picture of? Explain the 3
main components?
The water cycle – evaporation,
condensation, precipitation
What is this a picture of? How can it
help conserve water?
Irrigation – maintains moisture in the soil,
and helps with the germination of crops so
they can grow
How can water pollution harm our
environment and our water supply?
Opinion….Good Answer 