This quiz works best with JavaScript enabled. Home > Cbse > Class 6 > Science > Changes Around Us > Class 6 Science Chapter 6 Changes Around Us – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Heat is a form of ..... A) HOT AND HEATNESS. B) ENERGY. C) HEAT SUBSTANCE. D) None of the above. Show Answer Correct Answer: B) ENERGY. 2. If we boil some milk and add a small amount of lemon juice to it. The milk will turn into a curdly substance that is cheese (name the change) A) Slow change. B) Physical change. C) Fast change. D) Reversible change. Show Answer Correct Answer: C) Fast change. 3. Ripening of a mango is a ..... change A) Reversible. B) Non-reversible. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-reversible. 4. Melting of ice is an example of ..... A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical change. 5. Examples of Slow changes A) Cutting of hair. B) Burning of crackers. C) Heating of water. D) Rusting of iron. Show Answer Correct Answer: D) Rusting of iron. 6. The effects of the changes are A) Change in size. B) Change in shape. C) Change in colour or taste. D) All of these. Show Answer Correct Answer: D) All of these. 7. Growth in size of the body of an organism is a A) Physical and permanent change. B) Physical and temporary change. C) Chemical and temporary change. D) Chemical and permanent change. Show Answer Correct Answer: A) Physical and permanent change. 8. Which of the following is a chemical change? A) Breaking of a brick. B) Moving of a wheels. C) Burning of fuels. D) Evaporaton of water. Show Answer Correct Answer: C) Burning of fuels. 9. Setting of curd from milk is ..... change A) Slow, chemical and irreversible. B) Fast, physical and reversible. C) Slow, physical and reversible. D) Slow, physical and reversible. Show Answer Correct Answer: A) Slow, chemical and irreversible. 10. When cooked food is left outside at room temperature, it gets spoilt. This is an example of ..... change. A) Physical only. B) Reversible. C) Irreversible. D) Chemical only. Show Answer Correct Answer: C) Irreversible. 11. Boiling an egg is a A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 12. When objects absorb heat, the particles ..... A) Gain energy and vibrate at fixed position. B) Gain energy and increase in size. C) Gain energy and move slower. D) Gain energy and move faster. Show Answer Correct Answer: D) Gain energy and move faster. 13. A potter shapes pots out of clay (Process 1). He then bakes the pots in an oven (Process 2). Which of the following statements is correct? A) Process 1 is a reversible, physical change while process 2 is an irreversible, physical change. B) Process 1 is an irreversible, physical change while process 2 is an irreversible, chemical change. C) Process 1 is a reversible, physical change while process 2 is an irreversible, chemical change. D) None of these. Show Answer Correct Answer: C) Process 1 is a reversible, physical change while process 2 is an irreversible, chemical change. 14. When heat is removed, vibration of atoms A) Increase. B) Decrease. C) No change. D) None of the above. Show Answer Correct Answer: B) Decrease. 15. While making vegetable salad Meena had cut a variety of raw vegetables. She mistakenly cut apples as well. As the apples cannot be joined together, this change is ..... A) Periodic change. B) Irreversible change. C) Reversible change. D) Natural change. Show Answer Correct Answer: B) Irreversible change. 16. While lighting a candle, Paheli observed the following changes (i) Wax was melting. (ii) Candle was burning. (iii) Size of the candle was reducing. (iv) Melted wax was getting solidified. Of the above, the changes that can be reversed are A) (i) and (ii). B) (ii) and (iii). C) (iii) and (iv). D) (i) and (iv). Show Answer Correct Answer: D) (i) and (iv). 17. ..... changes are usually impossible to reverse A) Chemical Changes. B) Physical Changes. C) Both. D) None of the above. Show Answer Correct Answer: A) Chemical Changes. 18. Mrs. Aggarwal accidentally mixed oil in water while working in kitchen. Which method can be used to separate oil and water. A) Centrifugation. B) Evaporation. C) Distillation. D) Separating funnel. Show Answer Correct Answer: D) Separating funnel. 19. Growth is a change that cannot be reversed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. Which of the following is a cereal? A) Rice. B) Bean. C) Onion. D) Peas. Show Answer Correct Answer: A) Rice. 21. Straight spring to a coiled string, is this reversible or not? A) Yes. B) No. C) None. D) None of the above. Show Answer Correct Answer: A) Yes. 22. Changes that lead to the formation of new substances are called ..... A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 23. Which among the following is an irreversible change? A) Melting of ice. B) Formation of flower from bud. C) Heating of milk. D) Kicking a football. Show Answer Correct Answer: B) Formation of flower from bud. 24. Change in state of matter is a/an ..... physical change. A) Irreversible. B) Fast. C) Reversible. D) Exothermic. Show Answer Correct Answer: C) Reversible. 25. In general, on heating metals A) Contract. B) Expand. C) Can expand or contract. D) None of these. Show Answer Correct Answer: B) Expand. 26. Great belt bridge in Denmark expands ..... m in summer. A) 7.4. B) 7.5. C) 5.7. D) 4.7. Show Answer Correct Answer: D) 4.7. 27. Blooming of a flower is A) Natural change. B) Man made change. C) Physical change. D) Chemical change. E) Natural change. Show Answer Correct Answer: A) Natural change. 28. Rolling of chapathi and baking of chapathi are the changes that, A) Can be reversed. B) Cannot be reversed. C) Can be reversed and cannot be reversed. D) Cannot be reversed and can be reversed. Show Answer Correct Answer: C) Can be reversed and cannot be reversed. 29. Which of these is an irreversible physical change? A) Burning of paper. B) Baking. C) Cutting of wood. D) None of the above. Show Answer Correct Answer: C) Cutting of wood. 30. Which of the following is an example of a physical change? A) The cooking of food. B) Burning of wood. C) The melting of ice candy. D) The ripening of a mango. E) Making of Fossils. Show Answer Correct Answer: C) The melting of ice candy. 31. The change of day and night is caused by A) Rotation of the earth. B) Moon. C) Stars. D) Sun. Show Answer Correct Answer: A) Rotation of the earth. 32. Preeti decided to make lemon juice. What could be the solvent? A) Sugar. B) Salt. C) Water. D) Lemon drops. Show Answer Correct Answer: C) Water. 33. The process where the liquid changing in to solid is called ..... A) Evaporation. B) Condensation. C) Freezing. D) None of the above. Show Answer Correct Answer: C) Freezing. 34. Folding of a paper is a ..... change A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 35. Can you obtain wood from sawdust? A) No. B) Yes. C) I don't know. D) None of these. Show Answer Correct Answer: A) No. 36. When water is heated at its boiling point in it changes into vapour, and water vapor can back again into water by condensation is called ..... A) Physical changes. B) Reversible changes. C) Chemical changes. D) Periodic changes. Show Answer Correct Answer: B) Reversible changes. 37. Is vapourisation an reversible changes A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 38. Cooking of vegetables is a ..... change A) Reversible. B) Non-reversible. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-reversible. 39. MELTING OF WATER IS A A) PHYSICAL CHANGE. B) CHEMICAL CHANGE. C) IRREVERSIBLE CHANGE. D) NONE OF THESE. Show Answer Correct Answer: C) IRREVERSIBLE CHANGE. 40. Which of the following is an application of expansion due to heat. A) Working of a mercury thermometer. B) Rotating of a fan. C) Rusting of iron. D) Working of a television. Show Answer Correct Answer: A) Working of a mercury thermometer. 41. Wet clothes to dirty clothes can we reverse it? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 42. Which of the following is a reversible change. A) Curdling of milk. B) Melting of a chocolate. C) Corrosion of metal. D) Tearing of paper. Show Answer Correct Answer: B) Melting of a chocolate. 43. Which of the following changes can be reversed? A) Cow dung to biogas. B) Wet clothes to dry clothes. C) Raw egg to boiled egg. D) Bud to flower. Show Answer Correct Answer: B) Wet clothes to dry clothes. 44. Is melting of ice a Physical Reversible Change? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 45. The black material (tar) for repairing road is. A) Heated. B) Cooled. C) Heated and cooled. D) None. Show Answer Correct Answer: A) Heated. 46. Folding paper is an irreversible change A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 47. The new substances formed during or after the chemical reaction are known as ..... A) Products. B) Reactants. C) All the above. D) None of the above. Show Answer Correct Answer: A) Products. 48. Is growth of weeds an desirable change? A) Yes. B) No. C) Maybe. D) None of the above. Show Answer Correct Answer: B) No. 49. Cake batter baked in an oven A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 50. Freezing of water, evaporation, stretching of rubber string, switching 'on' or 'off' of a light bulb are which type of change A) Chemical change. B) Physical change. C) Irreversible change. D) Reversible change. Show Answer Correct Answer: D) Reversible change. 51. Painting on a paper is a/an A) Reversible, chemical change. B) Reversible, physical change. C) Irreversible, physical change. D) Irreversible, chemical change. Show Answer Correct Answer: C) Irreversible, physical change. 52. Which of the following can be reversed? A) Wet clothes to dry clothes. B) Bud of a flower. C) Raw egg to boiled egg. D) Cow dung to bio-gas. Show Answer Correct Answer: A) Wet clothes to dry clothes. 53. A change may occur by, ..... substances or by ..... it with some other. A) Heating, mixing. B) Colling, heating. C) , Confidentiality. D) Non of above. Show Answer Correct Answer: A) Heating, mixing. 54. Heart beat is a periodic change A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 55. For making the curd, we should the milk. A) Heat. B) Cool. C) Boil. D) None. Show Answer Correct Answer: A) Heat. 56. Souring of milk is a A) Physical change. B) Chemical change. C) Periodic change. D) All of above. Show Answer Correct Answer: B) Chemical change. 57. What happens in ALL chemical changes? A) An explosion. B) Change in state of matter. C) A new substance is formed. D) Bubbles are produced. Show Answer Correct Answer: C) A new substance is formed. 58. ..... changes are defined as the changes that are usefull to us A) Contraction. B) Undesirable. C) Desirable. D) None of the above. Show Answer Correct Answer: C) Desirable. 59. A ..... change affects the form or appearance of a substance A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 60. In which of the following changes, did the Ripening of fruits derives? A) Undesirable Change. B) Irreversible Changes. C) Desirable Change. D) Chemical Change. Show Answer Correct Answer: C) Desirable Change. ← PreviousNext →Related QuizzesScience QuizzesClass 6 QuizzesClass 6 Science Chapter 6 Changes Around Us Quiz 1Class 6 Science Chapter 6 Changes Around Us Quiz 3Class 6 Science Chapter 6 Changes Around Us Quiz 4Class 6 Science Chapter 6 Changes Around Us Quiz 5Class 6 Science Chapter 6 Changes Around Us Quiz 6Class 6 Science Chapter 6 Changes Around Us Quiz 7Class 6 Science Chapter 6 Changes Around Us Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books