
Water Treatment Process
Presentation
•
Science
•
1st Grade
•
Easy
Standards-aligned
Laura Rice
Used 4+ times
FREE Resource
6 Slides • 10 Questions
1
The Water Treatment Process
How do we know the water that we drink is 'clean' or safe to drink?
2
Open Ended
Where does the water in our taps come from?
3
Dublin water:
The Poulophouca reservoir in Co Wicklow
4
Poulaphouca Dam
5
Open Ended
What sort of substances need to be removed from this water before it is safe for us to drink it?
6
Open Ended
How is the water 'cleaned' before we drink it?
7
8
9
Irish Water video
https://www.youtube.com/watch?v=iYFwFRWOEho&ab_channel=IrishWaterUisceEireann
10
Multiple Choice
True of false: Raw water is safe to drink?
True
False
11
Multiple Choice
What is the name of the first stage in the water treatment process?
Settlement
Fluorination
Screening
Chlorination
12
Multiple Choice
What is removed during the screening process?
Small particles that settle on the bottom
Bacteria and Viruses
Large items such as branches, sticks and sometimes fish
13
Multiple Choice
After screening, what is the name of the next stage in the water treatment process?
Screening
Settlement/ clarification
Fluorination
Chlorination
14
Multiple Choice
What substance is used to filter fine particles from the water?
Grass
Soil
Hay
Sand
15
Multiple Choice
What chemical is added to the water to kill micro-organisms such as bacteria that could be in the water?
Oxygen
Fluorine
Chlorine
Iodine
16
Multiple Choice
Why is fluorine added to water in the final stage of water treatment?
To make it taste better
To prevent tooth decay
To make sure it stays the right colour
To protect the pipes
The Water Treatment Process
How do we know the water that we drink is 'clean' or safe to drink?
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