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Revision day 4 (Freshwater & Ocean)

Total questions: 14

Worksheet time: 8mins

Name
Class
Date
1.
Where is most of the freshwater found on Earth?
a)
lakes
b)
glaciers
c)
oceans
d)
rivers
2.
Approximately what percentage of the water on Earth is freshwater?
a)
0.1%
b)
3%
c)
50%
d)
97%
3.

This fresh water is

a)

River

b)

Swamp

c)

Glaciers

d)

Permafrost

4.

Fresh water can be found in living things

a)

True

b)

False

5.
These are the three main jobs of wetlands.
a)
provide habitats, store flood waters, purify water
b)
provide habitats, store plant life, purify water
c)
purify water, store wildlife, provide habitats
d)
purify the land, store flood waters, provide habitats
6.

Wetlands are important because they __________ water like a sponge.

a)

drink

b)

remove

c)

filter or clean

7.

This house gets water from

a)

River

b)

Ocean

c)

Aquifer

d)

Reservoir

8.

Most of freshwater is trapped as

a)

Ice

b)

Vapor

c)

Steam

d)

underground water

9.

What is an Ocean?

a)

small body of salty water

b)

large body of freshwater

c)

large body of salty water

d)

small body of freshwater

10.

Deeper in ocean, we can find

a)

warmer water

b)

colder water

c)

more lighted water

d)

extreme hot water

11.

Amount of salt dissolved in water of Ocean and seas

a)

Temperature

b)

Acidity

c)

Salinity

d)

Viscosity

12.

Ocean receiving water from rivers would have

a)

less salinity

b)

more salinity

c)

salinity will not be affected

d)

None of the above

13.

Pollution of ocean by

a)

Garbage

b)

oil spill

c)

Nuclear waste

d)

global warming

14.

about _____% of the Earth's water can be found in our oceans.

a)

25%

b)

67%

c)

72%

d)

97%