EASY
Earn 100

The polar ice caps are formed due to:
(a)Freezing of water
(b)Melting ice
(c)Boiling of water
(d)Dissolving of water

50% studentsanswered this correctly
Important Questions on States of Matter: Gaseous and Liquid States
EASY
Write [G] for good habits and [B] for bad food habits.
We should not drink enough water. [ ]

MEDIUM
Distinguish between.
Soluble and Insoluble impurities.

EASY
Which of the following is not soluble in water?

MEDIUM
Write three ways to make water safe for drinking.

EASY
Chemicals like chlorine, bleaching powder or potassium permanganate are added to the water to make it

EASY
The solute and solvent together form a _____.

EASY
Water solidifies at .

MEDIUM
Describe how water can become polluted. What can we do to keep water clean?

EASY
The process of filtration is used to remove

EASY
Fill in the blank with an appropriate word:
Mixing of jelly crystals in water is _____ (illusion/solution/pollution).

EASY
Daily human activities like bathing in the river does not cause pollution.

EASY
Which of the following diseases is caused due to regular drinking of polluted water?

EASY
Correct the following sentence by changing the underlined word.
Filtration and condensation are used to remove soluble impurities from water.

EASY
Fill in the blank using the right word:
We should drink _____ (clean/distilled) water.

EASY
Fill in the blank with an appropriate word:
Water is used to put out _____ (fire/air).

EASY
_____ is the substance that dissolves in a solvent.

MEDIUM
Why do we need to filter or boil water before drinking?

EASY
Choose the right word and fill in the blank:
We should not throw waste in _____. (dustbin/water bodies)

EASY
The process by which the water droplets melt in the clouds and fall on the ground is called _____.

EASY
Polluted water causes _____ in humans.

