CBSE Class 6 Science Air Around Us Worksheet

Question. Shyam took out a bottle of cold water from the fridge, wiped it dry and left it on the table. A few minutes later he found water droplets on the outside of the bottle. Which process leads to the formation of the droplets.
(a) Precipitation
(b) Evaporation
(c) Condensation
(d) Filtration

Answer : C

Question. Three beakers of different sizes are filled with water to the same height. The temperature of water is the same in all the beakers. If a cube of ice is added to each of the three beakers, which one will have the lowest temperature after the ice melts?

Answer : A

Question. Which of these is NOT a major air pollutant?
(a) Carbon Monoxide
(b) Nitrogen dioxide
(c) Carbon dioxide
(d) Suspended particulate matter

Answer : C

Question. The type of pollution that increases sharply during Diwali each year in the big cities and has a serious effect on people's health is
(a) air pollution
(b) sound pollution
(c) water pollution
(d) all of the above

Answer : A

Question. Which figure correctly represents a glass being pushed vertically down into a trough of water?

Answer : B

Question. Which word completes the given sentence from a news item? Concerned about the effect of pollution on the Taj, the Supreme Court ordered the Agra Heritage Fund to set up a ______ power plant to meet the energy needs of the Taj Mahal and the surrounding area.
(a) thermal
(b) diesel
(c) solar
(d) nuclear

Answer : C

Question. Mahesh filled water in a vessel and kept a lit candle as shown. He then covered the candle with a glass beaker as shown below.  What is he likely to observe after 15 minutes?

Answer : C

Question. Which is among the three LEAST polluted cities with regard to each of the pollutants : SPM, SO2 AND NO2?
Study this table containing pollution data about various Indian cities on a particular day and answer the question.

(a) Ahmedabad
(b) Bangalore
(c) Chennai
(d) Guwahati

Answer : A

Question. In 1888, John Boyd Dunlop, a British veterinary surgeon, invented the air-filled pneumatic tyre. Which principle of gases do air-filled tyres use to make wheels of cars and bicycles run smoothly at the high speeds of today?
(a) Gases are invisible.
(b) Gases are fluids that flow.
(c) Gases can be compressed
(d) Gases expand on heating.

Answer : A

Question. What is the total approximate rainfall for the week?
(a) 50 mm
(b) 60 mm
(c) 70 mm
(d) 80 mm

Answer : D

Question. Air pollution causes __________________.
(a) lung diseases
(b) deafness
(c) dysentery
(d) diarrhoea

Answer : A

Question. Kiran's mother placed a candle in a bowl as shown and lit it. A little while later, Kiran opened a bottle of Pepsi and poured it quickly into the bowl. What will happen?

(a) The candle flame will burn brighter.
(b) The candle flame will be put out.
(c) The candle and flame will be completely unaffected.
(d) The candle will break.

Answer : B

Question. Winds blow because
(a) trees shake.
(b) birds fly.
(c) of temperature differences between places.
(d) the earth revolves around the sun.

Answer : C

Question. A wind vane is an instrument that helps us to find out the direction of the wind. The arrow in a wind vane always points to the direction FROM WHICH the wind blows.Identify the picture below that shows wind blowing from the south-east.(The pictures below show the same more clearly as it appears from the below.)

Answer : D

Question. Which of these activities, if done regularly, can help reduce air pollution?
(a) Spend very little time outside home.
(b) Use only TV or radio for entertainment purposes.
(c) Walk or use bicycles to go to nearby places.
(d) Burn all the garden waste in an open space at least once a week.

Answer : C

TOPIC: AIR AROUND US

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