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WorksheetsThe Basics of Freshwater
Total questions: 13
Worksheet time: 20mins
Name
Class
Date
1.
To keep on living, all living things need _____
a)
Crash Course videos
b)
YouTube videos of cats
c)
some form of water
d)
Marvel superhero movies
2.
How much of the surface of the Earth is covered in water?
a)
less than half
b)
about half
c)
about two-thirds
d)
more than two-thirds
3.
We actually have enough water on Earth to leave a faucet running for _____
a)
136 thousand years
b)
136 million years
c)
136 billion years
d)
136 trillion years
4.
Most of the water on earth is _____
a)
in flowing rivers
b)
in large lakes
c)
trapped in glaciers
d)
in the oceans
5.
What kind of water is found in rivers, ponds, wetlands, and streams?
a)
salt water
b)
fresh water
c)
hard water
d)
mineral water
6.
Freshwater contains _____
a)
less than 0.1% salt
b)
about 0.1% salt
c)
about 1% salt
d)
more than 1% salt
7.
Which field of science deals with the Earth's surface?
a)
biology
b)
astronomy
c)
geography
d)
archaeology
8.
On a map of the Earth, most of the blue stuff represents _____
a)
glaciers
b)
land
c)
fresh water
d)
salt water
9.
What percent of the water on the planet is salty?
a)
less than 95%
b)
about 95%
c)
about 97%
d)
more than 97%
10.
What percent of the planet's total water supply is freshwater?
a)
less than 3%
b)
about 3%
c)
about 5%
d)
more than 5%
11.
What percent of the planet's water is locked up freshwater in frozen glaciers or underground?
a)
less than 2%
b)
about 2%
c)
about 3%
d)
more than 3%
12.
In North America, a large source of freshwater is _____
a)
the Atlantic Ocean
b)
the Pacific Ocean
c)
the Great Lakes
d)
Hudson Bay
13.
What percent of Earth's available freshwater is in the five Great Lakes?
a)
less than 20%
b)
about 20%
c)
about 30%
d)
more than 30%
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