Water Pollution and Safe Handling of Water

What does chlorination do to the water?

• Removes germs

• Cleans the water

• Makes the water taste nice

• Removes twigs and sediment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the best way to purify water?

• Add salt

• Put inside the refrigerator

• Filtration or Boiling

• Find a very clean stream of water

By drinking unclean water, one may get disease like

• malaria

• dengue

• chikungunya

• cholera

Dust and other suspended particles present in unclean water can be removed by __

• boiling

• keeping it in fridge

• filtration

• chlorination

Our body requires and uses water for _

• breathing

• digestion of food

• preparation of food

potable water is water which is fit for drinking

• True

• False

Washing clothes at the river bank.

• Good

• Bad

Tags

NGSS.MS-LS2-4

Watering plants using a sprinkler.

• Right

• Wrong

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Germs , present in water, may be killed by-

• Chlorination

• simple filtration

• storing it in covered containers

• storing it for many days

Method of cleaning _____________________.

• Purification

• Chlorination

• Filtration

• Boiling