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Water treatment and filtration

Total questions: 13

Worksheet time: 13mins

Name
Class
Date
1.

What is the final phase of Wastewater Treatment?

a)

Storage in a water tower for use in homes

b)

Discharge into a river, stream, ocean, etc.

c)

Settling tank

d)

Filtration

2.

What is the first phase of Drinking Water treatment?

a)

Storage in a water tower

b)

Aeration (bubbling)

c)

Pumping from a river, reservoir, lake, or groundwater

d)

Chlorination

3.

What is this part of wastewater treatment (just after floc is added)?

a)

Bar screen

b)

Water tower

c)

Filter

d)

Settling tank or clarifier

4.

What is the first step in wastewater treatment (pictured)?

a)

Filtration with a bar screen

b)

Aeration tank

c)

Coagulation

d)

Aeration

5.

Can sand pass through filter paper?

a)

Yes

b)

No

6.

What is the best way to purify water?

a)

Add salt

b)

Put inside the refrigerator

c)

Filtration or Boiling

d)

Find a very clean stream of water

7.

Which of these particles is NOT able to pass through a sand, gravel, and charcoal filter?

a)

bacteria

b)

water

c)

viruses

d)

large piece of dirt

8.
What does chlorination do to the water?
a)
Removes microorganisms
b)
Cleans the water
c)
Makes the water taste nice
d)
Removes twigs and sediment
9.
What are two things that water treatment plants need to do?
a)
Clean and disinfect the water
b)
Boil and evaporate the water
c)
Remove the animals and plants
d)
Add chemicals and remove pesticides
10.

Which THREE of these are steps in wastewater treatment?

a)

Percolation

b)

Filtration

c)

Distillation

d)

Settling

e)

Chlorination

11.

A human-made hole that reaches deep in the Earth to collect groundwater is called...

a)

An aquifer

b)

A well

c)

A water treatment plant

d)

Dumbledore

12.

_________ is the process of either filtering or disinfecting water so that it is safe to drink.

a)

Conserving water

b)

Drinking water

c)

Water pollution

d)

Water treatment

13.

True or False: Water is essential for ALL life here on Earth.

a)

True

b)

False