SAFE HANDLING AND STORAGE OF WATER

How many glasses of water should we drink in one day?

• 6 to 8 litres

• 6 to 8 glasses

• No need to drink water

• 1 to 2 glasses

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

What does chlorination do to the water?

• Removes germs

• Cleans the water

• Makes the water taste nice

• Removes twigs and sediment

Which of these is the most appropriate way to store water for a long time?

• 
• 
• 
• 

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

• bacteria

• water

• viruses

• large piece of dirt

Method used to separate an insoluble solid from liquid or soluble solid-

• Filtration

• Distillation

• Crystallisation

• Evaporation

This is a structure meant to store large quantities of water for the people of a city. This is called a

• water tank

• tower tank

• artificial lake

• upper tank

The method used to make lake water safe and potable -

• 
• 
• 
• 

What is the best way to purify water?

• Add salt

• Put inside the refrigerator

• Filtration or Boiling

• Find a very clean stream of water

Tags

NGSS.MS-PS1-2