This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 6 Changes Around Us – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following changes can be reversed? A) Raw egg to boiled egg. B) Bud to flower. C) Wet clothes to dry clothes. D) Cow dung to biogas. Show Answer Correct Answer: C) Wet clothes to dry clothes. 2. 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. 3. The black material (tar) for repairing road is. A) Heated. B) Cooled. C) Heated and cooled. D) None. Show Answer Correct Answer: A) Heated. 4. 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. 5. 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. 6. Is growth of weeds an desirable change? A) Yes. B) No. C) Maybe. D) None of the above. Show Answer Correct Answer: B) No. 7. 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. 8. Freezing of water, evaporation, stretching of rubber string, switching 'on' or 'off' of a light bulb are which type of change A) Physical change. B) Irreversible change. C) Reversible change. D) Chemical change. Show Answer Correct Answer: C) Reversible change. 9. Painting on a paper is a/an A) Reversible, physical change. B) Irreversible, chemical change. C) Reversible, chemical change. D) Irreversible, physical change. Show Answer Correct Answer: D) Irreversible, physical change. 10. Which of the following can be reversed? A) Raw egg to boiled egg. B) Wet clothes to dry clothes. C) Bud of a flower. D) Cow dung to bio-gas. Show Answer Correct Answer: B) Wet clothes to dry clothes. 11. 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. 12. 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. 13. For making the curd, we should the milk. A) Heat. B) Cool. C) Boil. D) None. Show Answer Correct Answer: A) Heat. 14. 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. 15. What happens in ALL chemical changes? A) Change in state of matter. B) A new substance is formed. C) Bubbles are produced. D) An explosion. Show Answer Correct Answer: B) A new substance is formed. 16. Chemical change A) New subtance. B) No new subtance. C) None. D) Both a and b. Show Answer Correct Answer: A) New subtance. 17. ..... 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. 18. 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. 19. In which of the following changes, did the Ripening of fruits derives? A) Desirable Change. B) Undesirable Change. C) Chemical Change. D) Irreversible Changes. Show Answer Correct Answer: A) Desirable Change. 20. What is physical change A) Irreversible change. B) Reversible change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Reversible change. 21. Which of the following process is cause Chemical changes in the state of matter? A) Melting. B) Burning. C) Freezing. D) Boiling. E) Dancing. Show Answer Correct Answer: B) Burning. 22. Spreading of Viral infections like COVID-19, is a ..... change A) Fast. B) Slow. C) Physical. D) Moderate. Show Answer Correct Answer: A) Fast. 23. Which factor is responsible for the expansion and contraction of a metallic rod? A) Change in shape. B) Change in weight. C) Change in type of material. D) Change in temperature of the rod. Show Answer Correct Answer: D) Change in temperature of the rod. 24. When object is cooled, it's size A) Increases. B) Decreases. C) Remains same. D) None of the above. Show Answer Correct Answer: B) Decreases. 25. Which of the following is an example of non periodic change? A) Rotation of fan. B) Phases of moon. C) Landslide. D) Movement of earth around sun. Show Answer Correct Answer: C) Landslide. ← 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 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 10Class 6 Science Chapter 6 Changes Around Us Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books