This quiz works best with JavaScript enabled. Home > Class 6 > Class 6 Science Chapter 6 Changes Around Us – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 6 Science Chapter 6 Changes Around Us Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is heating sugar to make caramel a physical or chemical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 2. Reversible changes also known as A) Periodic change. B) Non periodic change. C) Chemical change. D) Physical change. Show Answer Correct Answer: D) Physical change. 3. How many type of changes are there A) 2 type-chemical change, Physical change. B) 3 type-chemical changes, physical change, reversibblechange. C) 4 type-chemical change, physical change, reversibblechange, ireverssiblechange. D) None of the above. Show Answer Correct Answer: C) 4 type-chemical change, physical change, reversibblechange, ireverssiblechange. 4. An example of irreversible change is: A) Dissolving salt in water. B) Heating of water. C) Melting of chocolates. D) Cooking of food. Show Answer Correct Answer: D) Cooking of food. 5. What type of change is the "rusting of iron" A) Physical, reversible. B) Chemical, irreversible. C) Physical, irreversible. D) Chemical, reversible. Show Answer Correct Answer: B) Chemical, irreversible. 6. Of the changes below, which is NOT an irreversible change: A) Rusting. B) Cooking. C) Melting. D) Burning. Show Answer Correct Answer: C) Melting. 7. Changing solid to a gas is called A) Evaporation. B) Condensation. C) Sublimation. D) Freezing. Show Answer Correct Answer: C) Sublimation. 8. Which of the following is revesible changes? A) Roti. B) Chapati. C) Paper folding. D) Paper burning. Show Answer Correct Answer: C) Paper folding. 9. CURDLING MILK IS A) SLOW CHANGE. B) FAST CHANGE. C) REVERSIBLE CHANGE. D) NO CHANGE. Show Answer Correct Answer: A) SLOW CHANGE. 10. The expanding of matter when it is heated is known as A) Condensation. B) Evaporation. C) Thermal expansion. D) Vaporization. Show Answer Correct Answer: C) Thermal expansion. 11. Ice cream to molten ice cream, is this change reversible?( yes / no) A) No. B) Yes. C) Don't know. D) None of the above. Show Answer Correct Answer: B) Yes. 12. When iron is heated it A) Contracts. B) Expands. C) Dissolves. D) Evaporates. Show Answer Correct Answer: B) Expands. 13. Burning a log is a chemical change A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. What is an exothermic change A) A change that can be reversed. B) A change that is useful. C) A change in which heat is released. D) A change in which heat is absorbed. Show Answer Correct Answer: C) A change in which heat is released. 15. What is the correct meaning of Galvanization A) Coating metal with its own oxide to make it more durable. B) Mainly coating Aluminium with zinc to prevent corrosion or rusting. C) Coating a metal with a layer of zinc to prevent corrosion or rusting. D) Mainly coating Aluminium with its own oxide to make it more durable. Show Answer Correct Answer: C) Coating a metal with a layer of zinc to prevent corrosion or rusting. 16. When the iron blade is on the wooden handle it is fitted A) By heating then cooling. B) By cooling then heating. C) By boiling then cooling. D) By freezing. Show Answer Correct Answer: A) By heating then cooling. 17. WHICH CHANGE CAUSES RAIN A) EVAPORATION. B) CONDENSATION. C) BOTH A AND B. D) NONE. Show Answer Correct Answer: C) BOTH A AND B. 18. A balloon changes its size and shape on blowing air into it. Will it gain its previous shape and size if air is blown out. A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 19. Bursting of balloon is a slow change. A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 20. If we cut a paper we can stick it back then why is it an Irreversible Change? A) Because If we keep it anywhere It looks like the original form. B) The paper will turn back automatically. C) It does not change exactly like before. D) Wrong it is Reversible. Show Answer Correct Answer: C) It does not change exactly like before. 21. Irreversible changes cannot go backwards A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. Every change has a cause. true or false A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. The process of converting solid directly into gas A) Condensation. B) Sublimation. C) Melting. D) Evaporation. Show Answer Correct Answer: B) Sublimation. 24. Solubility of solutes with a decrease in temperature A) Increase. B) Decreases. C) Remains same. D) None of the above. Show Answer Correct Answer: B) Decreases. 25. Baking of chapathi is a change that: A) Can be reversed. B) Cannot be reversed. C) I don't know. D) None of the above. Show Answer Correct Answer: B) Cannot be reversed. ← 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