NCERT Class 6 Science Chapter 6 Changes Around Us MCQ

NCERT Class 6 Science Chapter 6 Changes Around Us MCQ | Questions & Answers: Hello students!! in this article, we have provided the NCERT Class 6 Science Chapter 6 Changes Around Us Multiple Choice Questions. By answering the online MCQ quiz you guys can know the overall score and ultimately where you stand with regards to your knowledge about Class 6 Science Chapter 6 Changes Around Us concept.

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1. Physical chemical changes are a result of absorption of

A. some kind of energy

B. light energy only

C. heat energy only

D. sound energy only

2. 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

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

4. A chemical change involves

A. change of state as well as composition

B. change of state only

C. change of colour only

D. None of these

5. In general, on heating metals _

A. Contract

B. Expand

C. Can expand or contract

D. None of these

6. Cooked food is the:

A. Chemical change

B. Physical change

C. Both (a) and (b)

D. None of these

7. A physical change is a/an :

A. permanent change

B. irreversible change

C. temporary change

D. None of these

8. If we burn a candle, the height of a candle will .

A. Decreased

B. Increased

C. Remain same

D. None of these

9. What are the changes that can be reversed called?

A. Reversible changes

B. Irreversible changes

C. Contraction

D. Evaporation

10. An example of a physical change is

A. digestion of food

B. photosynthesis by plants

C. burning of wood

D. magnetization of iron

11. 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

12. For making the curd, we should the milk.

A. Heat

B. Cool

C. Boil

D. None of these

13. An example of an undesirable change is

A. earthquake

B. melting of snow on mountains

C. evaporation of water

D. flowering of plants

14. 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

15. Metal rim is made slightly than the wooden wheel.

A. Bigger

B. Smaller

C. Equal

D. None of these

16. An example of a periodic change is

A. swinging of a clock pendulum

B. rusting of iron

C. landslides during rains

D. sneezing

17. 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

18. the metal rim expands and fits into the wheel.

A. On boiling

B. On cooling

C. On heating

D. All of these

19. During physical and chemical changes

A. no energy is absorbed or released

B. energy is always released

C. energy is always absorbed

D. energy is either absorbed or released

20. A process in which an object becomes smaller or shrinks is called

A. chemical change

B. irreversible change

C. contraction

D. expansion

21. The black material (tar) for repairing road is .

A. Heated

B. Cooled

C. Heated and cooled

D. None of these

22. A change is an alteration in the physical and chemical properties of matter due to the effect of :

A. heat

B. light

C. some kind of energy

D. pressure

23. Cooked food is the:

A. Chemical change

B. Physical change

C. Both (a) and (b)

D. None of these

24. The incense stick has burnt to give off.

A. Gases

B. Ashes

C. Both (a) and (b)

D. None of these

25. Physical changes are

A. temporary and can be reversed

B. irreversible

C. permanent

D. temporary and irreversible

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26. Metal expand on heating and contract on.

A. Boiling

B. Washing

C. Cooling

D. Both (a) and (b)

27. Sea water is a

A. Element

B. Mixture

C. Molecule

D. Compound

28. A change in a substance can be brought by heating it or by it with other

A. Cooling

B. Boiling

C. Washing

D. Mixing

29. Temperature at which a solid starts melting is called its

A. melting point

B. boiling point

C. freezing point

D. slow change

30. An iron piece is heated red hot and beaten into a shape.

A. Desired

B. Undesired

C. Same

D. All of these

31. A physical change is a/an :

A. temporary change

B. permanent change

C. irreversible change

D. None of these

32. The change which can be reversed is known as:

A. Reversible change

B. Irreversible change

C. Both (a) and (b)

D. None of these

33. On heating metal rim

A. expands

B. contracts

C. depends on how much it is heated

D. depends as the type of meted

34. The changes in which new substance is formed is called

A. Temporary change

B. Biological change

C. Chemical change

D. Physical change

35. A process in which liquid changes into gas is known as:

A. Solution

B. Fusion

C. Condensation

D. Evaporation

36. The change in which chemical properties of a substance change is called

A. chemical change

B. physical change

C. heating

D. pressure

37. For making the curd, we should the milk.

A. Heat

B. Cool

C. Boil

D. None of these

38. When a solid dissolves in liquid then is formed.

A. Condensation

B. Fusion

C. Solution

D. Evaporation

39. Which one of the steps while burning a candle is not reversible?

A. Melting of solid wax

B. liquid wax changes into vapors

C. Wax vapor bums into flame

D. All of these

40. 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)

41. 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

42. Which is a way to make change happen?

A. Heating a substance

B. Cooling a substance

C. Mixing a substance

D. All of these

43. The changes which occur immediately are called:

A. Slow change

B. Temporary change

C. Permanent change

D. Fast change

44. Irreversible changes can also be called:

A. Temporary change

B. Reversible

C. Permanent change

D. None of these

45. Reversible changes can also be called:

A. Temporary change

B. Permanent change

C. Fast change

D. Slow change