This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 6 Changes Around Us – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Reversible changes can change back to its original form ..... A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. Changing liquid to a gas is called A) Melting. B) Freezing. C) Evaporation. D) Condensation. Show Answer Correct Answer: C) Evaporation. 3. Blowing air in a balloon is A) Chemical change. B) Periodic change. C) Physical change. D) Irreversible change. Show Answer Correct Answer: C) Physical change. 4. You fill the balloon with too much air. It bursts. Is it reversible? A) Yes. B) No. C) Maybe. D) None of the above. Show Answer Correct Answer: B) No. 5. Is condensation irreversible changes A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. Changing in physical properties of a material is called A) Chemical Change. B) Physical Change. C) Slow Change. D) Fast Change. Show Answer Correct Answer: B) Physical Change. 7. Metals ..... on heating and ..... on cooling A) Metals expand on heating and contracts on cooling. B) Metals contracts on heating and expands on cooling. C) All the above. D) None of the above. Show Answer Correct Answer: A) Metals expand on heating and contracts on cooling. 8. Which of the following is a sign that a chemical reaction has occurred? A) Change in shape. B) Melting. C) Formation of a gas. D) Dissolving. Show Answer Correct Answer: C) Formation of a gas. 9. Which of these is an inter vertebrate? A) Cobra. B) Snail. C) Frog. D) Humans. Show Answer Correct Answer: B) Snail. 10. Burning wax brings about changes in the molecules of wax. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Irreversible 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: B) FALSE. 12. What is happening in the statement below?The ice cube melted. A) Matter is changing from a liquid to a solid. B) Matter is changing from a liquid to a gas. C) Matter is changing from a solid to a liquid. D) Matter is changing from a gas to a liquid. Show Answer Correct Answer: C) Matter is changing from a solid to a liquid. 13. Heating metal cannot be reversed (T/F) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. Which of the following is an irreversible change that takes place when heat is provided to the system? A) Melting of ice. B) Transformation of water into steam. C) Burning of coal. D) The expansion of iron. Show Answer Correct Answer: C) Burning of coal. 15. An irreversible change is one in which ..... A) The original substances can be obtained. B) The original substances can sometimes be obtained. C) The original substance cannot be obtained. D) No new substance is formed. Show Answer Correct Answer: C) The original substance cannot be obtained. 16. Digestion of food is a A) Temporary change. B) Periodic change. C) Chemical change. D) Physical change. Show Answer Correct Answer: C) Chemical change. 17. Which of the following is/are natural change(s)? A) Formation of glaciers. B) Weathering of rocks. C) Ripening of fruits. D) All of these. Show Answer Correct Answer: D) All of these. 18. Cow dung to biogas, is this reversible process? A) No. B) Yes. C) Don't know. D) None of the above. Show Answer Correct Answer: A) No. 19. Physical change A) No new subtance. B) Old subtence. C) New subtance. D) None. Show Answer Correct Answer: A) No new subtance. 20. An ..... change cannot be undone because the change is permanent and generally creates a new substance. A) Reversible. B) Irreversible. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irreversible. 21. In a ..... change, a new substance is formed example conversion of milk to curd. A) Physical. B) Chemical. C) Reversible. D) None of the above. Show Answer Correct Answer: B) Chemical. 22. Rust is reddish-brown substance formed due to A) Metal react to iron. B) Iron react to metal. C) Metal react to moister and oxygen. D) Iron react to moister and oxygen. Show Answer Correct Answer: D) Iron react to moister and oxygen. 23. Rolling of chapathi and baking oh 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. 24. What is a reversible change A) Changes that involve the physical properties of a substance. B) Changes that cannot be reversed. C) Changes that can be reversed. D) Changes that involve the formation of new substances. Show Answer Correct Answer: C) Changes that can be reversed. 25. Deforestation is an irreversible or reversible change? A) Reversible Change. B) Irreversible Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irreversible 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 8Class 6 Science Chapter 6 Changes Around Us Quiz 9Class 6 Science Chapter 6 Changes Around Us Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books