NCERT Class VI Science Solutions: Chapter 15 – Air Around Us Part 3 (For CBSE, ICSE, IAS, NET, NRA 2022)

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SHORT ANSWER QUESTIONS

Question 13:

A list of words is given in a box. Use appropriate words to fill up the blanks in the following statements Air, oxygen, wind, water vapour, mixture, combination, direction, road, bottles and cylinders.

  1. The ________ makes the windmill rotate.
  2. Air is a ________ of some gases.
  3. A weather cock shows the ________ in which the air is moving at that place.
  4. Mountaineers carry oxygen ________ with them, while climbing high mountains.

Answer:

  1. The wind makes the windmill rotate.
  2. Air is a mixture of some gases.
  3. A weather cock shows the direction in which the air is moving at that place.
  4. Mountaineers carry oxygen cylinders with them, while climbing high mountains.

Question 14:

Observe the picture given in Fig, carefully and answer the following questions.

Result for Traffic Signal
  1. What is covering the nose and mouth of the police man?
  2. Why is he putting a cover on his nose?
  3. Can you comment on air quality of the place shown in the Fig?

Answer:

  1. Mask
  2. To save himself from dirt/polluted air.
  3. Air quality of the place is not good. It is due to the smoke and gases emitted by the automobiles along with dust particles present in the air.

Question 15:

Garima observed that when she left her tightly capped bottle full of water in the open sunlight, tiny bubbles were formed all around inside the bottle. Help Garima to know why it so happened?

Answer:

Air dissolved in water starts escaping in the form of tiny bubbles due to heat from the sun.

Question 16:

Match the items of Column I with the items of Column II

Match the Items of Column I and Column II (Q)
Column IColumn II
  1. Weather cock
  • Gases and fine dust particles
  • Mountaineers
  • Sailing yacht
  • Fine hair inside the nose
  • Oxygen cylinders
  • Smoke
  • Direction of air flow
  • Wind
  • Prevent dust particles

Answer:

Match the Items of Column I and Column II (A)
Column IColumn II
  1. Weather cock
iv Direction of air flow
  1. Mountaineers
iii Oxygen cylinders
  1. Fine hair inside the nose
v Prevent dust particles
  1. Smoke
i Gases and fine dust particles
  1. Wind
ii Sailing yacht