This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 6 Changes Around Us – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Substances expand on A) Solids. B) Water. C) Heating. D) Boiling. Show Answer Correct Answer: C) Heating. 2. Solids expand on heating and ..... on cooling A) Join. B) Change. C) Contract. D) Move. Show Answer Correct Answer: C) Contract. 3. Which of the following is a Natural Change: A) Cutting of hair. B) Breaking of glass. C) Burning of paper. D) Change of day and night. Show Answer Correct Answer: D) Change of day and night. 4. New substances With different molecules get formed in a physical change A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 5. Freezing of water is A) Reversible Change. B) Irreversible. C) All the above. D) None of the above. Show Answer Correct Answer: A) Reversible Change. 6. Name:Plants that grow in deserts and need very small amounts of water for their survival. A) Saprophytes. B) Xerophytes. C) Mesophytes. D) Hydrophytes. Show Answer Correct Answer: B) Xerophytes. 7. Which of the following is a periodic change? A) Earthquake. B) Flood. C) Pendulum ringing after an hour. D) Volcano. Show Answer Correct Answer: C) Pendulum ringing after an hour. 8. Grand canyon is formed due to continuous ..... change. A) Physical change. B) Change change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 9. Which one of the steps while burning a candle is not reversible A) Melting of solid wax. B) Liquid wax changes into vapour. C) Wax vapour burns into flame. D) All of these. Show Answer Correct Answer: C) Wax vapour burns into flame. 10. Evaporation of water is a reversible change A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Rusting of iron is A) Slow change. B) Fast change. C) Reversible change. D) Irreversible change. Show Answer Correct Answer: A) Slow change. 12. New product change A) Melting of ice. B) Melting of wax. C) All of above. D) None of the above. Show Answer Correct Answer: A) Melting of ice. 13. While making salt from sea water, ..... process is used. It involves ..... change. A) Condensation, slow. B) Distillation, fast. C) Evaporation, reversible. D) Crystallisation, irreversible. Show Answer Correct Answer: C) Evaporation, reversible. 14. A change in the size, shape, or state of matter. A) Chemical change. B) Physical change. C) Chemical reaction. D) Electron change. Show Answer Correct Answer: B) Physical change. 15. When heated air in the balloon expands A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Milk changes to curd. Can this be reversed? A) Yes. B) No. C) Yes, some times. D) None of the above. Show Answer Correct Answer: B) No. 17. Chopping wood is what kind of change? A) Chemical changes. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical change. 18. Define chemical change A) An irreversible chemical reaction involving the rearrangement of the atoms of one or more substances. B) A reversible reaction. C) Chemicals become seperate. D) I don't know. Show Answer Correct Answer: A) An irreversible chemical reaction involving the rearrangement of the atoms of one or more substances. 19. A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage. on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed by us? A) Yes. B) No. C) Doctor can do this. D) None. Show Answer Correct Answer: B) No. 20. Weathering is? A) A fast change to the earth's surface. B) A slow change to the earth's surface. C) A boring change to the earth's surface. D) None of the above. Show Answer Correct Answer: B) A slow change to the earth's surface. 21. Slow change: A) Happens in no time i.e. seconds. B) Happens within hours, days and weeks. C) All the above. D) None of the above. Show Answer Correct Answer: B) Happens within hours, days and weeks. 22. Rohit heated water until it became a gas. Which of the following terms describes this change? A) Boiling. B) Freezing. C) Condensing. D) Melting. Show Answer Correct Answer: A) Boiling. 23. Pick the change that can be reversed from the following. A) Cutting of trees. B) Melting of ghee. C) Burning of candle. D) Blooming of flower. Show Answer Correct Answer: B) Melting of ghee. 24. When an object is heated, its size A) Increases. B) Decreases. C) Remains same. D) None of the above. Show Answer Correct Answer: A) Increases. 25. What are the 4 types of Changes? A) Physical, Chemical. B) Physical, Chemical, Reversible. C) Physical, Chemical, Irreversible, Reversible. D) None of the above. Show Answer Correct Answer: C) Physical, Chemical, Irreversible, Reversible. ← 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 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 10Class 6 Science Chapter 6 Changes Around Us Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books