Here we are providing Class 6 science Objective Chapter – 6 Changes around us because its very important for Class 6 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 6 science Objective Chapter – 6 Changes around us is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class Class 6 science Objective Chapter – 6 Changes around us 59+ questions so that students practice more and more. If you want class wise Notes Then Click Here
Class 6 Science Objective Chapter – 6 Changes around us
1.Which of the following changes can be reversed?
( A ) Raw egg to boiled egg
( B ) Wet clothes to dry clothes
( C ) Bud to flower
( D ) Cow dung to biogas
Ans – ( B )
2. If we burn a candle, the height of a candle will .
( A ) Decreased
( B ) Increased
( C ) Remain same
( D ) None of these
Ans – ( A )
3.When ice melts into water, what types of changes do you observe ?
( A ) Physical changes
( B ) Chemical changes
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( A )
4.What are the changes that can be reversed called?
( A ) Reversible changes
( B ) Irreversible changes
( C ) Contraction
( D ) Evaporation
Ans – ( A )
5. The changes in which new substance is formed is called
( A ) Temporary change
( B ) Biological change
( C ) Chemical change
( D ) Physical change
Ans – ( C )
6.Cooked food is the:
( A ) Chemical change
( B ) Physical change
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( A )
7.Which of the following changes cannot be reversed?
( A ) Milk to paneer
( B ) Cold milk to hot milk
( C ) Yam to knitted sweater
( D ) Wet clothes to dry clothes
Ans – ( A )
8. The change in which chemical properties of a substance change is called
( A ) chemical change
( B ) physical change
( C ) heating
( D ) pressure
Ans – ( A )
9.A process in which an object becomes smaller or shrinks is called
( A ) chemical change
( B ) irreversible change
( C ) contraction
( D ) expansion
Ans – ( C )
10. Which of the following is an example of physical change?
( A ) Boiling of water
( B ) Ripening of fruit
( C ) Rusting of iron
( D ) A bud turning into flower
Ans – ( A )
11.If we burn a candle, the height of a candle will .
( A ) Decreased
( B ) Increased
( C ) Remain same
( D ) None of these
Ans – ( A )
12.Metal rim is fixed to the wooden cart wheel by
( A ) heating metal rim
( B ) heating wooden wheel
( C ) cooling metal rim
( D ) cooling wooden wheel
Ans – ( A )
13. In general, on heating metals _______
( A ) Contract
( B ) Expand
( C ) Can expand or contract
( D ) None of these
Ans – ( B )
14.Temperature at which a solid starts melting is called its
( A ) melting point
( B ) boiling point
( C ) freezing point
( D ) slow change
Ans – ( A )
15.For making the curd, we should the milk.
( A ) Heat
( B ) Cool
( C ) Boil
( D ) None of these
Ans – ( A )
16.On heating metal rim
( A ) expands
( B ) contracts
( C ) depends how much it is heated
( D ) depends as the type of meted
Ans – ( A )
17.Which is a way to make change happen?
( A ) Heating a substance
( B ) Cooling a substance
( C ) Mixing a substance
( D ) All of these
Ans – ( D )
18.Metal rim is made slightly than the wooden wheel.
( A ) Bigger
( B ) Smaller
( C ) Equal
( D ) None of these
Ans – ( B )
19.The melting of gold is an example of:
( A ) chemical change
( B ) physical change
( C ) chemical electrical
( D ) physical magnetical
Ans – ( B )
20.Which one of the steps while burning a candle is not reversible?
( A ) Melting of solid wax
( B ) liquid wax changes into vapours
( C ) Wax vapour bums into flame
( D ) All of these
Ans – ( C )
21.the metal rim expands and fits into the wheel.
( A ) On boiling
( B ) On cooling
( C ) On heating
( D ) All of these
Ans – ( C )
22.Which is not a sign of reversible change?
( A ) Change in state
( B ) Change in property
( C ) Change in size
( D ) Change in appearance
Ans – ( B )
23.Which is a way to make a change happen?
( A ) Heating a substance
( B ) Cooling a substance
( C ) Mixing a substance with another substance
( D ) All of these
Ans – ( D )
24.The black material (tar) for repairing road is .
( A ) Heated
( B ) Cooled
( C ) Heated and cooled
( D ) None of these
Ans – ( A )
25.A process in which liquid changes into vapour is called
( A ) contraction
( B ) evaporation
( C ) melting
( D ) freezing
Ans – ( B )
26.The incense stick has burnt to give off.
( A ) Gases
( B ) Ashes
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( C )
27.Rusting of iron is an example of
( A ) slow change
( B ) fast change
( C ) reversible change
( D ) physical change
Ans – ( A )
28.Metal expand on heating and contract on.
( A ) Boiling
( B ) Washing
( C ) Cooling
( D ) Both ( A ) and (b)
Ans – ( C )
29.Which of the following changes cannot be reversed?
( A ) Milk to paneer
( B ) Cold milk to hot milk
( C ) Yarn to knitted sweater
( D ) Wet clothes to dry clothes
Ans – ( A )
29.A change in a substance can be brought by heating it or by it with other substances.
( A ) Cooling
( B ) Boiling
( C ) Washing
( D ) Mixing
Ans – ( D )
30.Conversion of a solid to liquid by heating is called
( A ) evaporation
( B ) melting
( C ) condensation
( D ) freezing
Ans – ( B )
31.An iron piece is heated red hot and beaten into a shape.
( A ) Desired
( B ) Undesired
( C ) Same
( D ) All of these
Ans – ( A )
32.Melting of wax is
( A ) chemical change
( B ) physical change
( C ) both of these
( D ) none of these
Ans – ( B )
33.The change which can be reversed is known as:
( A ) Reversible change
( B ) Irreversible change
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( A )
34.Which of the following is not a man-made change?
( A ) Change of day and night
( B ) Burning of fuels
( C ) Drying of clothes
( D ) Tearing of paper
Ans – ( A )
35.The change which cannot be reversed is known as:
( A ) Reversible change
( B ) Irreversible change
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( B )
36.Burning of paper is
( A ) chemical change
( B ) physical change
( C ) reversible
( D ) all of these
Ans – ( A )
37.A process in which liquid changes into gas is known as:
( A ) Solution
( B ) Fusion
( C ) Condensation
( D ) Evaporation
Ans – ( D )
38.Which of the following is a chemical change?
( A ) Evaporation of water
( B ) Burning of fuels
( C ) Moving of a wheel
( D ) Breaking of a brick
Ans – ( B )
39.A process by which gas is turned into liquid is known as:
( A ) Solution
( B ) Fusion
( C ) Condensation
( D ) Evaporation
Ans – ( C )
40.Force can cause change in the
( A ) size
( B ) shape
( C ) direction
( D ) all of these
Ans – ( D )
41.A process in which liquid is freezed into solid is known as:
( A ) Condensation
( B ) Fusion
( C ) Solution
( D ) Evaporation
Ans – ( B )
42.When a solid dissolves in liquid then is formed.
( A ) Condensation
( B ) Fusion
( C ) Solution
( D ) Evaporation
Ans – ( C )
43.Which one of the following factors is involved in a change?
( A ) Force
( B ) Heat
( C ) Chemical reaction
( D ) All of these
Ans – ( D )
44.Write a few changes taking place around us on their own:
( A ) Grain to its flour
( B ) Bud to flower
( C ) Cow dung to biogas
( D ) Both ( B ) and (c)
Ans – ( D )
45.Which of the following material do not expands on heating?
( A ) Iron
( B ) Wood
( C ) Glass
( D ) Oil
Ans – ( B )
46.The changes that require long time to occur are called:
( A ) Fast change
( B ) Slow change
( C ) Permanent change
( D ) Temporary change
Ans – ( B )
47.The effects of the changes are
( A ) change in size
( B ) change in shape
( C ) change in colour or taste
( D ) all of these
Ans – ( D )
48.The meaning of reverse is called
( A ) getting back to starting point
( B ) increase in size or volume
( C ) decrease in size or volume
( D ) a push or pull applied on an object
Ans – ( A )
49.The change of day and night is caused by
( A ) stars
( B ) sun
( C ) moon
( D ) rotation of the earth
Ans – ( D )
50.When a heated metal is cooled it
( A ) expands
( B ) contracts
( C ) doesn’t change
( D ) both ( A ) and (b)
Ans – ( B )
51.The changes which occur immediately are called:
( A ) Slow change
( B ) Temporary change
( C ) Permanent change
( D ) Fast change
Ans – ( D )
52.Which of these changes can be reversed?
( A ) Cutting of trees
( B ) Melting of ghee
( C ) Burning of candle
( D ) Blooming of flower
Ans – ( B )
53.Irreversible changes can also be called:
( A ) Temporary change
( B ) Reversible
( C ) Permanent change
( D ) None of these
Ans – ( C )
54.Which of these changes cannot be reversed?
( A ) Hardening of cement
( B ) Freezing of ice cream
( C ) Opening a door
( D ) Melting a chocolate
Ans – ( A )
55.An iron ring is heated. Which of the following statements about it is incorrect?
( A ) The ring expands.
( B ) The ring almost comes to the same size on cooling.
( C ) The change in this case is reversible.
( D ) The ring changes its shape and the change cannot be reversed.
Ans – ( D )
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56. In general, on heating metals _
( A ) Contract
( B ) Expand
( C ) Can expand or contract
( D ) None of these
Ans – ( B )
57.Which type of change is beating of heart?
( A ) Slow change
( B ) Fast change
( C ) Chemical change
( D ) None of these
Ans – ( B )
58. When ice melts into water, what types of changes do you observe ?
( A ) Physical changes
( B ) Chemical changes
( C ) Both ( A ) and (b)
( D ) None of these
Ans – ( A )
58.Which of these is a physical change?
( A ) Burning of paper
( B ) Melting of ice
( C ) Formation of rust on iron nail
( D ) Formation of curd from milk
Ans – ( B )
59. Which of the following changes cannot be reversed?
( A ) Milk to paneer
( B ) Cold milk to hot milk
( C ) Yam to knitted sweater
( D ) Wet clothes to dry clothes
Ans – ( A )
60.Which type of change is melting of wax?
( A ) Chemical change
( B ) Physical change
( C ) Both of these
( D ) None of these
Ans – ( B )
61. Which of the following is a reversible change?
( A ) Burning of matchstick
( B ) Changing of milk into curd
( C ) Germination of seed
( D ) Melting of ice
Ans – ( D )
62.Which of these is not an irreversible change?
( A ) Ironing of clothes
( B ) Baking the cake
( C ) Burning of incense stick
( D ) Rusting of steel gates
Ans – ( A )
63. A process in which an object becomes smaller or shrinks is called
( A ) chemical change
( B ) irreversible change
( C ) contraction
( D ) expansion
Ans – ( A )
64.What are the substances formed in a reaction called?
( A ) Reactants
( B ) Products
( C ) Sometimes products and sometimes reactants
( D ) None of these
Ans – ( B )
65. Metal rim is fixed to the wooden cart wheel by
( A ) heating metal rim
( B ) heating wooden wheel
( C ) cooling metal rim
( D ) cooling wooden wheel
Ans – ( A )
66.What are the changes in which a new substance is formed called?
( A ) Physical changes
( B ) Chemical changes
( C ) Fast changes
( D ) Slow changes
Ans – ( B )
67. Sea water is a
( A ) Element
( B ) Mixture
( C ) Molecule
( D ) Compound
Ans – ( B )
