This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 6 Changes Around Us – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. RUBBER BAND IS AN EXAMPLE OF REVERSIBLE CHANGE True or False A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Which of these is the smallest particle? A) A speck of dust. B) An atom. C) A water drop. D) A molecule. Show Answer Correct Answer: B) An atom. 3. Raw egg to boiled eggs, is this change is reversible? (Yes/no) A) No. B) Yes. C) Don't know. D) None of the above. Show Answer Correct Answer: A) No. 4. Can a same substance undergo both physical and chemical changes. A) YES. B) NO. C) All the above. D) None of the above. Show Answer Correct Answer: A) YES. 5. There are periodic and non-periodic changes. The changes that occur after a fixed time period are termed as periodic. The example of periodic changes is ..... A) Falling of leaves. B) Beating of heart. C) Earthquakes. D) Growth of children. Show Answer Correct Answer: B) Beating of heart. 6. A change which is permanent in nature. A) Irreversible. B) Reversible. C) All the above. D) None of the above. Show Answer Correct Answer: A) Irreversible. 7. Which of these is NOT an irreversible change? A) Burning. B) Melting. C) Rusting. D) None of the above. Show Answer Correct Answer: B) Melting. 8. Burning of a candle is ..... A) Only a physical change. B) Only a chemical change. C) Both physical and chemical change. D) None of these. Show Answer Correct Answer: C) Both physical and chemical change. 9. Which of the following is not an irreversible change? A) Frying food products. B) Boiling vegetables. C) Melting of wax. D) Baking biscuits. Show Answer Correct Answer: C) Melting of wax. 10. Paheli's mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a- A) A physical change that can be reversed. B) The chemical change that can be reversed. C) A physical change that cannot be reversed. D) The chemical change that cannot be reversed. Show Answer Correct Answer: A) A physical change that can be reversed. 11. Stretched rubber band to its normal size is a reversible process. Is it true or false? A) True. B) False. C) None. D) None of the above. Show Answer Correct Answer: A) True. 12. When a metal rim is fitted on a wood it is first A) Expanded then contracted. B) Contracted then expanded. C) Melted then cooled. D) None of these. Show Answer Correct Answer: A) Expanded then contracted. 13. Melting of ice is a A) Irreversible. B) Reversible. C) Chemical Change. D) None of these. Show Answer Correct Answer: B) Reversible. 14. Water freezing A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 15. Which of these is a result of a physical change? A) A new odour. B) A new gas. C) A new chemical substance. D) A solution. Show Answer Correct Answer: D) A solution. 16. Temperature at which a solid starts melting is called its A) Freezing point. B) Boiling point. C) Slow change. D) Melting point. Show Answer Correct Answer: D) Melting point. 17. What is reversible change A) Permanent change. B) Temporary change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Temporary change. 18. WHICH CHANGE CAUSE SHRINK OF OBJECT A) PHYSICAL CHANGE. B) CHEMICAL CHANGE. C) IRREVERSIBLE. D) NONE OF THESE. Show Answer Correct Answer: D) NONE OF THESE. 19. Is Digestion of food a Chemical Change? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 20. What are the changes that can be reversed called? A) Reversible changes. B) Irreversible changes. C) Contraction. D) Evaporation. Show Answer Correct Answer: A) Reversible changes. 21. If we blow a balloon it also changes its size and shape but can we get back the original size and shape back?? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 22. When increase in temperature, matter: A) Expands. B) Compress. C) Contracts. D) No Change. Show Answer Correct Answer: A) Expands. 23. Woolen yarn to knitted sweater is a reversible process. Find true or false. A) True. B) False. C) None. D) None of the above. Show Answer Correct Answer: A) True. 24. Which of these is NOT a reversible change? A) Water to Ice. B) Juice to Popsicle. C) Cookie Dough to Cookie. D) Melting Chocolate. Show Answer Correct Answer: C) Cookie Dough to Cookie. 25. Is the melting of butter a reversible change or Irreversible change? A) The melting of butter is a reversible change. B) The melting of butter is an irreversible change. C) All the above. D) None of the above. Show Answer Correct Answer: A) The melting of butter is a reversible change. ← PreviousNext →Related QuizzesClass 6 Science Chapter 6 Changes Around Us Quiz 1Class 6 Science Chapter 6 Changes Around Us Quiz 2Class 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 9Class 6 Science Chapter 6 Changes Around Us Quiz 10Class 6 Science Chapter 6 Changes Around Us Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books