This quiz works best with JavaScript enabled. Home > Cbse > Class 6 > Science > Changes Around Us > Class 6 Science Chapter 6 Changes Around Us – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Consider The Following Sentences And Choose The Reversible Changes A) Changing of bread into toast. B) Chemical change. C) Melting of wax. D) None of the above. Show Answer Correct Answer: C) Melting of wax. 2. Is blowing out a ballon a change or stimuli? A) Change. B) Reversable. C) Stimuli. D) Abbrevation. Show Answer Correct Answer: A) Change. 3. The solvent can be seperated by ..... The solute can be obtained by ..... the solvent. A) Evaporation, Distillation. B) Distillation, Evaporation. C) Condensatio, Precipitation. D) Evaporation, Condesation. Show Answer Correct Answer: B) Distillation, Evaporation. 4. Chemical changes are mostly reversible and temporary A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. There are physical and chemical changes. Physical changes is a change in which phisical of a substance may get altered but its chemical composition remains is same. The example of physical changes is ..... A) Burning of wood. B) Burning of paper. C) Curdling of milk. D) Melting of ice. Show Answer Correct Answer: D) Melting of ice. 6. An iron is heated. Which of the following statement about is incorrect A) The ring expand. B) The ring almost comes to the same size on cooling. C) The change in this case is reversed. D) The ring change its shape and the change cannot be reversed. Show Answer Correct Answer: D) The ring change its shape and the change cannot be reversed. 7. How many types of common changes are there A) 10. B) 14. C) 12. D) 16. Show Answer Correct Answer: B) 14. 8. Which change should be prevented? A) Blooming of a flower. B) Making of ice-cream. C) Burning of trees. D) Folding paper. Show Answer Correct Answer: C) Burning of trees. 9. The burning of wood A) Can be reversed. B) Cannot be reversed. C) Can be expanded. D) Can be melted. Show Answer Correct Answer: B) Cannot be reversed. 10. In a chemical change A) Energy is given out. B) Energy is either absorbed or given out. C) Energy change do not occur. D) Energy is always absorbed. Show Answer Correct Answer: B) Energy is either absorbed or given out. 11. Which of the following is a factor affecting changes? A) Heating. B) Passing electricity. C) Mixing solutions. D) Adding water. E) All of the above. Show Answer Correct Answer: E) All of the above. 12. Which statements are Correct about herbs. 1) Herbs are medium sized plants. 2) They have soft and green stems. 3)Vegetables, Grasses etc. Are examples of herbs. A) Only 1 is correct. B) 2 & 3 Is correct. C) Only 2 is correct. D) All statements are Correct. Show Answer Correct Answer: B) 2 & 3 Is correct. 13. All reversible changes are physical. But all physical changes are not reversible. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. On heating metal rim A) Expands. B) Contracts. C) Depend how much it is heated. D) Depends as the type of metal. Show Answer Correct Answer: A) Expands. 15. ..... is an example of desirable change. A) Rusting of iron. B) Drying of cloths. C) Breaking of glass. D) Tearing of paper. Show Answer Correct Answer: B) Drying of cloths. 16. All the changes in nature are reversible A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 17. Folding of paper is a ..... change while burning it is a ..... change. A) Reversible, reversible. B) Reversible, irreversible. C) Irreversible, reversible. D) None of the above. Show Answer Correct Answer: B) Reversible, irreversible. 18. In a physical change: A) The molecules of the substance do not change. B) New substance are formed. C) The molecules of the substance do not change. D) The molecules of a substance undergo change. Show Answer Correct Answer: A) The molecules of the substance do not change. 19. Meal rim made slightly than the wooden wheel. A) Bigger. B) Smaller. C) Equal. D) None. Show Answer Correct Answer: B) Smaller. 20. Is breaking of pencil a reversible change? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 21. True or False:Cow reproduce by dividing itself. A) False. B) True. C) It's is correct but 50%. D) None of the above. Show Answer Correct Answer: A) False. 22. Give an example of physical change A) Kicking a football. B) Burning a paper. C) Growth of animals and plants. D) Cooking. Show Answer Correct Answer: A) Kicking a football. 23. Force can cause change in the A) Size. B) Shape. C) Direction. D) All of these. Show Answer Correct Answer: D) All of these. 24. A sugar solution was prepared by adding sugar to water. Identify the solute. A) Sugar. B) Water. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sugar. 25. Pressure is equal to the force per unit second. A) TURE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 26. Which one of the following is a reversible change A) Tearing of paper. B) Blowing air in a balloon. C) Breaking of stick. D) Baked chapati. Show Answer Correct Answer: B) Blowing air in a balloon. 27. A student cuts a square piece of paper into 4 small square pieces as shown.What makes this change irreversible change? A) Difference in colour. B) Reduction of size. C) Change in shape. D) Addition of heat. Show Answer Correct Answer: B) Reduction of size. 28. Fizzing, foaming, and burning are all examples of A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 29. If we inflate a tire, the shape and size of the tire changes. This change is irreversible, but if the tire bursts while inflating, then the change is reversible. A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 30. Rusting of iron is an ..... change. A) Reversible change. B) Desirable change. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 31. A student is creating a potting soil mix. She combines 100 grams of sand, 200 grams of soil, and 200 grams of pebbles to make her potting soil. What is the mass of the potting soil? A) 500 grams. B) 300 grams. C) 200 grams. D) 100 grams. Show Answer Correct Answer: A) 500 grams. 32. One cup of water is left outside for two days when it was checked there was only half a cup left. What happened? A) Condensation. B) Distillation. C) Evaporation. D) Sublimation. Show Answer Correct Answer: C) Evaporation. 33. Salt can be separated from its solution (salt dissolved in water), because A) Mixing of salt in water is a change that can be reversed by heating and melting salt. B) Mixing of salt in water is a change that cannot be reversed. C) Mixing of salt in water is a permanent ' change. D) Mixing of salt in water is a change that can be reversed by evaporation. Show Answer Correct Answer: D) Mixing of salt in water is a change that can be reversed by evaporation. 34. When you break a glass of water can it change back by its own shape A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 35. Which of these is a reversible Change? A) Rusting of iron. B) Burning of wax. C) Milk turning into curd. D) Melting of wax. Show Answer Correct Answer: D) Melting of wax. 36. Melting boiling evaporation and condensation are A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 37. A bag of cement lying in the open gets wet due to rain during night time. The next day sun shines brightly. Do you think the changes that have occured in the cement can be reversed? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 38. Conversion of a solid to liquid by heating is called fusion A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. The ..... balloon changes when we blow the air. A) Color. B) Shape. C) All the above. D) None of the above. Show Answer Correct Answer: B) Shape. 40. Which of the following is an example of both Physical and Irreversible change? A) Cutting of Paper. B) Making toast from bread. C) Burning of wood. D) Melting of ice. Show Answer Correct Answer: A) Cutting of Paper. 41. What is the meaning of Irreversible? A) Something that can return to it's normal shape. B) Something that can't return to it's normal shape. C) All the above. D) None of the above. Show Answer Correct Answer: B) Something that can't return to it's normal shape. 42. What is an example of a chemical change? A) Crushing a can. B) Boiling water. C) Baking a cake. D) Freezing ice. Show Answer Correct Answer: C) Baking a cake. 43. Is the souring of milk a chemical change? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 44. Melting of butter is an example of irreversible change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 45. A chemical change is A) Reversible. B) Irreversible. C) Both. D) None of the above. Show Answer Correct Answer: B) Irreversible. 46. The bomb blast is an example of: A) Reversible Change. B) Fast Change. C) Periodic Change. D) None of the above. Show Answer Correct Answer: B) Fast Change. 47. We can make paneer from milk. Is this process reversible? A) Yes. B) No. C) Don't know. D) None of the above. Show Answer Correct Answer: B) No. 48. Reversible change is the change in which the change is temporary A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 49. The changes that occur over a long period of time are called A) Fruit. B) Growth. C) Slow changes. D) Organism. Show Answer Correct Answer: C) Slow changes. 50. Breaking a glass is what kind of change? A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 51. Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rim- A) Expands and fits onto the wooden wheel. B) Contracts and fits onto the wooden wheel. C) No change in the size takes place. D) Expands first, then on cooling contracts and fits onto the wooden wheel. Show Answer Correct Answer: D) Expands first, then on cooling contracts and fits onto the wooden wheel. 52. We eat roots of ..... A) Radish. B) Rajma. C) Mustard. D) Chilli. Show Answer Correct Answer: A) Radish. 53. If we burn a candle, the height of a candle A) Decreased. B) Increased. C) Remain same. D) None. Show Answer Correct Answer: A) Decreased. 54. Batter to idli, is this change is reversible?(yes or no) A) No. B) Yes. C) Don't know. D) None of the above. Show Answer Correct Answer: A) No. 55. What do you think Irreversible change is? A) Non-permanent change. B) Permanent change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Permanent change. 56. State whether yes or no.-Can the change in the length of the candle that occurred during burning, be reversed? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 57. Which of the following changes cannot be reversed A) Yarn to knitted sweater. B) Milk to paneer. C) Wet clothes to dry clothes. D) Cold milk to hot milk. Show Answer Correct Answer: B) Milk to paneer. 58. The iron blade of a soil digging tool is fixed to a wooden handle by the process of ..... A) Expansion. B) Contraction. C) Melting. D) Freezing. Show Answer Correct Answer: A) Expansion. 59. We can change cold milk to hot milk, is this reversible or not? A) No. B) Yes. C) Don't know. D) None of the above. Show Answer Correct Answer: B) Yes. 60. Physical changes are ..... A) Always irriversible. B) Sometimes irreversible but most of the time, reversible. C) Some times reversible but most of the time, irreversible. D) Always reversible. Show Answer Correct Answer: B) Sometimes irreversible but most of the time, reversible. 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