9. Processes to purify water Flashcards
1
Q
What does the ‘purification of water’ mean?
A
The process to clean dirty water.
2
Q
What does it mean when water is ‘contaminated’?
A
When water contains substances or germs that make it unsafe to drink.
3
Q
Why might sieving not purify water?
A
Sieving removes large substances but can’t remove germs or dissolved impurities.
4
Q
Why is boiling a good way to purify water?
A
Boiling kills germs and parasites in the water.
5
Q
What chemical is most commonly used to kills germs in our drinking water?
A
Chlorine
