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WorksheetsClean Water
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
How much of the water on Earth is freshwater?
a)
97%
b)
3%
c)
50%
2.
Water filtration is a method used to remove and (a) impurities in the water
3.
All of the following are health benefits of filtering water EXCEPT
a)
removes minerals
b)
removes contaminants
c)
helps prevent waterborne diseases
4.
True or False. Boiling water occurs at 100 degrees F.
a)
True
b)
False
5.
Which methods of water purification REMOVE something from the water? Check all that apply.
a)
Boiling
b)
Chlorination
c)
Distillation
d)
Desalination
e)
Carbon filtration
6.
True or False. UV rays purify water by attacking DNA in harmful germs.
a)
True
b)
False
7.
How many gallons of wastewater are recycled per day to meet non-drinking water needs in the US?
a)
1000
b)
1 million
c)
1 billion
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