Match the following: Column A Column B 1. Filtration a. settling down of mud particles. 2. Sedimentation b. pouring of clear water. 3. Decantation c. pass through butter paper. 4. Distillation d. boiling and cooling the steam. e. pass through filter paper.

Filtration is a process used to separate insoluble impurities from a liquid by passing through filter paper. The muddy water is kept undisturbed for some time, and after sometimes the mud particles settle down because of the gravity. This process is called sedimentation. After sedimentation, the top clear water is gently poured off into another container. This process is called decantation. The process of purifying water by first boiling it and then condensing the steam is called distillation. Hence, Column A Column B 1. Filtration e. pass through filter paper 2. Sedimentation a. settling down of mud particles 3. Decantation b. pouring of clear water 4. Distillation d. boiling and cooling the steam

E M B I B E

Science Voyage 5.>Chapter 14 - Air and Water>HOTS>Q 1

MEDIUM

5th CBSE

IMPORTANT

Earn 100

Why do we sweat a lot and feel uncomfortable when there is high humidity?

Important Questions on Air and Water

EASY

5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 1

Name the following.

The envelope of air surrounding the earth.

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 2

Name the following.

The layer of atmosphere in which space shuttles orbit.

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 3

Name a gas that we inhale in the process of breathing.

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 4

Name the following.

The atmosphere consists of about $78 %$ of this gas. (Oxygen/ Nitrogen/ Carbon dioxide)

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 5

Name the following.

This gas is used in the glowing signboard.

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint>Q 6

Name the following.

This chemical is used as coolants.

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5th CBSE

IMPORTANT

Science Voyage 5.>Chapter 14 - Air and Water>Checkpoint

Match the following:

Column A	Column B
1. Filtration	a. settling down of mud particles.
2. Sedimentation	b. pouring of clear water.
3. Decantation	c. pass through butter paper.
4. Distillation	d. boiling and cooling the steam.
	e. pass through filter paper.