This quiz works best with JavaScript enabled. Home > Cbse > Class 6 > Science > Changes Around Us > 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 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Burning of candle is: A) Chemical change. B) Physical change. C) Both. D) None. Show Answer Correct Answer: C) Both. 2. Which type of change is the curdling of milk? A) Reversible change. B) Irreversible change. C) Reversible as well as irreversible change. D) None of these. Show Answer Correct Answer: B) Irreversible change. 3. What are the characteristic of physical change A) New substance is not formed, generaly reversible change. B) New substance is formed, generally reversible. C) New substance is formed, Irreversible. D) None of the above. Show Answer Correct Answer: A) New substance is not formed, generaly reversible change. 4. Growth in plants and animals is A) Either a physical change or a chemical change depending on how much the growth is. B) Neither physical nor chemical change since it is a life process. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 5. Which is a chemical change? A) Shredding paper. B) Baking a cake. C) Breaking glass. D) Melting ice. Show Answer Correct Answer: B) Baking a cake. 6. During rusting, iron is converted into ..... A) Iron (III) oxide. B) Iron (II) oxide. C) All the above. D) None of the above. Show Answer Correct Answer: A) Iron (III) oxide. 7. Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability? A) It weighs about 6000 kg. B) It is more than 7 metres high. C) It has not rusted after such a long period. D) It was built more than 1600 years ago. Show Answer Correct Answer: C) It has not rusted after such a long period. 8. ..... is universal solvent. A) Diesel. B) Oil. C) Petrol. D) Water. Show Answer Correct Answer: D) Water. 9. A teacher wants to show clear difference between physical and chemical changes, which one of the following will be suitable for the same A) Boiling of milk and freezing it. B) Setting curd and making paneer. C) Melting ice and freezing it. D) None of the above. Show Answer Correct Answer: B) Setting curd and making paneer. 10. A teacher wants to show clear difference between reversible and irreversible changes, which one of the following will be suitable for the same A) Boiling of milk and freezing it. B) Boiling milk and making paneer. C) Melting ice and freezing it. D) None of the above. Show Answer Correct Answer: B) Boiling milk and making paneer. 11. A change differs by it's A) Shape. B) All of these. C) Colour. D) Size. Show Answer Correct Answer: B) All of these. 12. What are chemical changes A) A new formation of gas. B) No new formation of substance. C) I don't know. D) A new formation of substance. Show Answer Correct Answer: D) A new formation of substance. 13. Is the burning a wax candle a slow change or fast change? A) Slow Change. B) Fast Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Fast Change. 14. What is a reversible change? A) Something you can change back. B) Something you cannot change back. C) All the above. D) None of the above. Show Answer Correct Answer: A) Something you can change back. 15. When atoms are supplied with heat, vibration A) Increases. B) Decreases. C) No change. D) None of the above. Show Answer Correct Answer: A) Increases. 16. Rusting of Iron is a A) Chemical change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 17. Which of the following changes takes place when heat is given? A) The bursting of a balloon due to filling of excess air. B) Crushing of coal pieces. C) Transformation of water into vapour. D) Dissolving of salt in water. Show Answer Correct Answer: C) Transformation of water into vapour. 18. The incense stick has burnt to give off. A) Glass. B) Ashes. C) Both (A) and (B). D) None. Show Answer Correct Answer: C) Both (A) and (B). 19. An ice cube melts into the water and the change is considered a reversible change.Which factor would reverse the change? A) Increase in temperature of the water. B) Decrease in weight of the water. C) Decrease in temperature of water. D) Increase in weight of the water. Show Answer Correct Answer: C) Decrease in temperature of water. 20. Appu celebrates his birthday on March 14 every year. This is an example of ..... change. A) Periodic Change. B) Non-Periodic Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Periodic Change. 21. Which one is **not** a reversible change A) Opening of a door. B) Tearing a paper. C) Breaking a cup?. D) Both tearing and breaking. Show Answer Correct Answer: D) Both tearing and breaking. 22. Changes that lead to the formation of new substance are called A) Physical changes. B) Reversible changes. C) Chemical changes. D) All of these. Show Answer Correct Answer: C) Chemical changes. 23. How is the metal rim of a wooden wheel made smaller? A) Cooling only. B) Heating then Cooling. C) Heating only. D) Cooling then Heating. Show Answer Correct Answer: B) Heating then Cooling. 24. China dish, tripod, Bunsesn burner, small glass and sheet are the materials to which activity? A) Changes involved in charring of Sugar. B) To observe a chemical reaction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Changes involved in charring of Sugar. 25. Evaporation is a physical change.It will occur only when ..... A) Heat is supplied. B) Heat is removed. C) Sugar is dissolved. D) Salt is dissolved. Show Answer Correct Answer: A) Heat is supplied. 26. On heating, water changes into ..... A) Vapour. B) Ice. C) All the above. D) None of the above. Show Answer Correct Answer: A) Vapour. 27. Which of the following contracts the least. A) Solid. B) Liquids. C) Gases. D) All contract equally. Show Answer Correct Answer: D) All contract equally. 28. In photosynthesis, carbon dioxide and water are converted into A) Glucose. B) Lipids. C) All the above. D) None of the above. Show Answer Correct Answer: A) Glucose. 29. Which is not a property of matter? A) Gas. B) Liquid. C) Solid. D) Ice. Show Answer Correct Answer: D) Ice. 30. Liquids expand on ..... A) Cooling. B) Heating. C) All the above. D) None of the above. Show Answer Correct Answer: B) Heating. 31. Which type of change is Growing of plant? A) Irreversible change. B) Physical change. C) Chemical change. D) None of the above. Show Answer Correct Answer: C) Chemical change. 32. Select the example of desired changes(i) Ripening of fruits. (ii) Rotting of fruits (iii) Rain (iv) Floods A) (i) and (ii). B) (i)and (iii). C) (ii) and (iii). D) (iii) and (iv). Show Answer Correct Answer: B) (i)and (iii). 33. If the removal of the cause of change leads to regain the original situation, then the change is known as A) Permanent. B) Slow. C) Irreversible. D) Reversible. Show Answer Correct Answer: D) Reversible. 34. Lighting up of a matchstick is a/an A) Periodic Change. B) Chemical Change. C) Fast Change. D) Natural Change. Show Answer Correct Answer: C) Fast Change. 35. Which one of the following is a carnivore animal? A) Peacock. B) Lion. C) Goat. D) Parrot. E) Buffalo. Show Answer Correct Answer: B) Lion. 36. A change temporary in nature is, A) Reversible. B) Irreversible. C) All the above. D) None of the above. Show Answer Correct Answer: A) Reversible. 37. Why do people paint on main doors? A) To make it look beautiful. B) To save it from rust. C) So that the painter gets more work. D) None of these. Show Answer Correct Answer: B) To save it from rust. 38. Change only in shape, size, appearance or state is known as ..... change. A) Chemical. B) Physical. C) Irreversible. D) None of the above. Show Answer Correct Answer: B) Physical. 39. Identify which among the following are the examples of slow changes I. Rusting of iron III. Germination of seedII. Spinning of top. IV. Burning of matchstick. A) I. and II. B) II. and III. C) I. and III. D) III. and IV. Show Answer Correct Answer: C) I. and III. 40. Is growing food in fields a Natural Changes? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 41. ..... reacts with oxygen to form rust. A) Carbon dioxide. B) Metal. C) Iron oxide. D) Iron. Show Answer Correct Answer: D) Iron. 42. Dissolving sugar in water is a A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical change. 43. Freezing of water is the example of ..... kind of change A) Undesirable change. B) Nuclear change. C) Chemical change. D) Physical change. Show Answer Correct Answer: D) Physical change. 44. Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and a then a small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are: A) Physical and chemical changes, respectively. B) Chemical and physical changes, respectively. C) Both physical change. D) Both chemical change. Show Answer Correct Answer: C) Both physical change. 45. Conversion of a solid to liquid by heating is called ..... A) Condensation. B) Melting. C) All the above. D) None of the above. Show Answer Correct Answer: B) Melting. 46. When objects contract upon cooling ..... A) Volume increases and density increases. B) Volume increases and density decreases. C) Volume decreases and density decreases. D) Volume decreases and density increases. Show Answer Correct Answer: D) Volume decreases and density increases. 47. The liquid in a thermometer ..... as the temperature increases. A) Expands. B) Disappears. C) Freezes. D) Explodes. Show Answer Correct Answer: A) Expands. 48. In which of the following changes, did the Growing of Hair derives? A) Irreversible Changes. B) Fast Changes. C) Reversible Changes. D) Slow Changes. Show Answer Correct Answer: B) Fast Changes. 49. The changes that take place on their own are called ..... A) Artificial Changes. B) Natural Changes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Natural Changes. 50. WHICH OF THE FOLLOWING CANNOT BE REVERSED? A) RUBBER BAND. B) DOUGH. C) ROTI. D) None of the above. Show Answer Correct Answer: C) ROTI. 51. What are irreversible changes? A) A change that can be reversed. B) I don't know. C) A change that cannot be reversed. D) A change in which no new substance are formed. Show Answer Correct Answer: C) A change that cannot be reversed. 52. Is there a new product formed in irreversible change A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Yes. 53. Raw egg to Boiled egg can we reverse the changes?? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 54. Growth of animals and plants A) I don't know. B) Chemcial change. C) Physical change. D) Reversible change. Show Answer Correct Answer: B) Chemcial change. 55. Which of the following changes takes when some other substance is mixed with the given substance? A) Heating of iron. B) The grinding of wheat into flour. C) Folding a paper to make a paper boat. D) Curdling of milk. Show Answer Correct Answer: D) Curdling of milk. 56. Making of an aeroplane by paper folding is an example of? A) Irreversible. B) Reversible. C) Undisirable. D) Slow. Show Answer Correct Answer: B) Reversible. 57. A girl is making chapati. She did the following steps:Step 1:She added water, salt, and flour to make a dough.Step 2:She used a rolling pin to shape the dough.Which of these options correctly explains the changes? A) Both the steps represent a reversible change. B) Both the steps represent an irreversible change. C) Step 1 is a reversible change and step 2 is an irreversible change. D) Step 2 is a reversible change and step 1 is an irreversible change. Show Answer Correct Answer: D) Step 2 is a reversible change and step 1 is an irreversible change. 58. Which is the opposite of condensation? A) Runoff. B) Evaporation. C) Precipitation. D) Transpiration. Show Answer Correct Answer: B) Evaporation. 59. What type of changes are the blowing of balloon and it's bursting? A) Both the changes are reversible. B) Reversible and irreversible. C) Both the changes are irreversible. D) Irreversible and reversible. Show Answer Correct Answer: B) Reversible and irreversible. 60. Washing soda + lemon juice ..... carbon dioxide + other components. in this chemical reaction washing soda and lemon juice are A) Products. B) Reactants. C) None of these. D) Both products as well as reactants. Show Answer Correct Answer: B) Reactants. ← PreviousNext →Related QuizzesScience QuizzesClass 6 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books