This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Physical And Chemical Changes > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A change in which new matter is formed, cannot be reversed A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical Change. 2. Which is not a clue that could indicate a chemical change has occurred? A) Change in color. B) Change in shape. C) Release of energy. D) Formation of an odor. Show Answer Correct Answer: B) Change in shape. 3. Every chemical change involves a transfer of ..... A) Energy. B) Mass. C) Volume. D) Density. Show Answer Correct Answer: A) Energy. 4. When molecules move in a crazy, no patterned way, what state of matter is it? A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 5. Some substances can be obtained in pure state from their solution by ..... A) Evaporation. B) Condensation. C) Boiling. D) Crystallization. Show Answer Correct Answer: D) Crystallization. 6. A burning candle exhibits A) Physical change. B) Chemical change. C) Physical and chemical change. D) No change. Show Answer Correct Answer: C) Physical and chemical change. 7. Carbon dioxide turns lime water A) Orange. B) Black. C) Blue. D) Milky. Show Answer Correct Answer: D) Milky. 8. What type of change is photosynthesis? A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 9. Salt dissolving in water A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 10. Melting of a wax is a ..... change. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 11. Luster (shininess) A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 12. Is frying an egg a physical or chemical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 13. Prevention of rusting in iron by coating it with zinc is called A) Painting. B) Greasing. C) Galvanization. D) Electroplating. E) Oiling. Show Answer Correct Answer: C) Galvanization. 14. Margaret places a cube of butter in a pan and places the pan on a heated stove top. What change can she observe? A) A change of state and a change in shape a change of state and a change in shape. B) A change in mass alone. C) A change of state alone. D) A change of color alone. Show Answer Correct Answer: A) A change of state and a change in shape a change of state and a change in shape. 15. When Magnesium ribbon is ignited using a candle flame, it burns with a ..... A) Brilliant white light. B) Bright green light. C) Sparkling red light. D) Dull yellow light. Show Answer Correct Answer: A) Brilliant white light. 16. What evidence would indicate a chemical change during digestion? A) Food being chewed into smaller pieces. B) The stomach churning food. C) The production of gas in the intestines. D) Food moving through the digestive tract. Show Answer Correct Answer: C) The production of gas in the intestines. 17. Something that starts a chemical change. A) Chemical Reaction. B) Starter. C) Reactant. D) Catalyst. Show Answer Correct Answer: D) Catalyst. 18. A glass breaks. Physical Change Chemical Change A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 19. Identify the type of reversible change.Water vapour to Liquid water A) Evaporation. B) Condensation. C) Boiling. D) Melting. Show Answer Correct Answer: B) Condensation. 20. Dissolving sugar in water is an example of a A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 21. Flammability (burns) A) Physical Property. B) Chemical Property. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical Property. 22. Both chemical and physical changes occur in digestion. A physical change occurs when ..... A) A change in color occurs. B) A new substance is created. C) Shape or size is altered. D) Light is produced. E) All of the above. Show Answer Correct Answer: C) Shape or size is altered. 23. Mixing Vinegar and Baking Soda will cause a A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 24. Have you noticed when steam is coming off of the pavement. Steam is most likely forming because the pavement is A) Heating the rainwater enough to form a solid. B) Cooling the rainwater enough to form a gas. C) Heating the rainwater enough to form a vapor. D) Cooling the rainwater enough to form a liquid. Show Answer Correct Answer: C) Heating the rainwater enough to form a vapor. 25. Which best describes why a diabetic should not have too many carbohydrates? A) Carbohydrates break down into sugars, which could cause a diabetic to have a high blood sugar level. B) Carbohydrates are known for giving people energy and diabetics do not need that much energy. C) Diabetic should eat a healthy diet and carbohydrates are not healthy. D) Carbohydrates are too difficult for the body to break down putting too much stress on the organs of a diabetic. Show Answer Correct Answer: A) Carbohydrates break down into sugars, which could cause a diabetic to have a high blood sugar level. 26. What kind of change is it when liquid water freezes into ice? A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 27. Which is a way that a piece of paper can go through a chemical change? A) Fold the paper in half. B) Soak the paper in water. C) Cut the paper with scissors. D) Burn the paper with fire. Show Answer Correct Answer: D) Burn the paper with fire. 28. A carton of milk going sour is a A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 29. A chemical property describes A) How dangerous a substance is. B) How a substance reacts with other substances. C) How much energy a substance has. D) How something tastes. Show Answer Correct Answer: B) How a substance reacts with other substances. 30. Scrambling eggs is an example of A) A physical change. B) A chemical change. C) Solution. D) None of the above. Show Answer Correct Answer: B) A chemical change. 31. Rusting of iron is an example of a: A) Physical change. B) Slow change. C) Fast change. D) Reversible change. Show Answer Correct Answer: B) Slow change. 32. Which of the following would indicate the formation of a new substance? A) A liquid turns to a solid. B) A sample of metal melts. C) Bubbles and fizzing occur. D) A solid dissolves in a liquid. Show Answer Correct Answer: C) Bubbles and fizzing occur. 33. Copper roof changing color A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 34. Explain the process of crystallization. A) Crystallization is the process of forming solid crystals from a homogeneous solution by cooling or evaporation of the solvent. B) Crystallization is the process of forming solid crystals from a heterogeneous solution by heating the solvent. C) Crystallization is the process of forming gas crystals from a homogeneous solution. D) Crystallization is the process of forming liquid crystals from a heterogeneous solution. Show Answer Correct Answer: A) Crystallization is the process of forming solid crystals from a homogeneous solution by cooling or evaporation of the solvent. 35. Which of the following is an indicator of a chemical change? A) Change in color. B) Change in shape. C) Change in size. D) Change in state. Show Answer Correct Answer: A) Change in color. 36. A green powder is heated & a gas is given off while it turns to a black solid. This describes A) Physical Change. B) Chemical Change. C) Change in Temperature. D) Change in State. Show Answer Correct Answer: B) Chemical Change. 37. Which of these is an example of a new substance being formed? A) A nail rusting. B) A wall being painted. C) Water changing to steam. D) Paper being folded. Show Answer Correct Answer: A) A nail rusting. 38. Formation of manure from leaves is a physical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 39. Most chemical changes cannot be reversed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 40. James has to provide an example of a physical change on his science test. Which of the following would be a correct response? A) Baking a cake. B) Making pancakes on the stove. C) An aluminum can being crushed. D) Making a camp fire. Show Answer Correct Answer: C) An aluminum can being crushed. 41. You are hungry and decide to make breakfast. You crack a raw egg into a frying pan. You cook your egg and eat it. The egg when through a ..... A) No change. B) Some change. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 42. What does melting point mean? A) The tempurture at which a substance changed from a solid to a liquid. B) The tempurture at which a liquid changes into a gas. C) The tempurture at which a liquid changes to a solid. D) None of the above. Show Answer Correct Answer: A) The tempurture at which a substance changed from a solid to a liquid. 43. In an exothermic reaction, energy is ..... A) Released. B) Stored. C) Doubled. D) Absorbed. Show Answer Correct Answer: A) Released. 44. Is glass breaking a chemical or phyiscal change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 45. Which is NOT an example of condensation? A) Dew is found on the grass on a summer morning. B) Drops of water form on a cold can of soda on a hot day. C) A bucket of water left uncovered eventually becomes empty. D) The walls of a bathroom are damp after someone takes a showers. Show Answer Correct Answer: C) A bucket of water left uncovered eventually becomes empty. 46. Which is NOT a physical property? A) Ability to conduct electric current. B) Odor. C) Hardness. D) Reacts with acid. Show Answer Correct Answer: D) Reacts with acid. 47. What happens to the weight of matter when it undergoes a physcial change? A) It stays the same. B) It increases. C) It decreases. D) None of the above. Show Answer Correct Answer: A) It stays the same. 48. Anna takes some apples and makes the changes as described in the list. 1. Cuts and apple into four pieces2. peels apple3.cooks an apple in the oven4. slices and apple and tops it with cool whipWhich process(es) will lead to a chemical change only? A) 1 only. B) 3 only. C) 2 and 4. D) 1 and 2. Show Answer Correct Answer: B) 3 only. 49. Which is the best example of a new substance forming? A) Lighting a match. B) Cutting a piece of paper. C) Popping a balloon. D) Hitting a nail with a hammer. Show Answer Correct Answer: A) Lighting a match. 50. What kind of properties result in the substance changing into a new substance? A) Chemical Properties. B) Real Properties. C) Liquid Properties. D) Physical Properties. Show Answer Correct Answer: A) Chemical Properties. 51. Is moldy cheese a chemical or physical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 52. Matter goes through a change resulting in a gas (smell). What type of change is most likely occurring? A) Bases. B) Physical. C) Chemical. D) Acids. Show Answer Correct Answer: C) Chemical. 53. What does the Law of Conservation of Matter refer to? A) Matter can be created but not destroyed. B) Matter can be destroyed but not created. C) Matter can not be created or destroyed. D) Matter is being lost everyday. Show Answer Correct Answer: C) Matter can not be created or destroyed. 54. Which of the following things has matter? A) Basketball. B) The sun. C) You. D) All of the above. Show Answer Correct Answer: D) All of the above. 55. What is the definition of mass? A) Person, place or thing. B) The amount of matter an object contains. C) V=L X W X H. D) A measure of the amount of space an object takes up. Show Answer Correct Answer: B) The amount of matter an object contains. 56. In the laboratory, a blue liquid is mixed with a yellow liquid. What would be the best evidence that a chemical change took place as the liquids were mixed? A) No change in the temperature of the new solution. B) The new liquid is green. C) The formation of a gas. D) The yellow liquid floats on top of the blue. Show Answer Correct Answer: C) The formation of a gas. 57. When heat is added to an ice cube, it will change to a A) Liquid. B) Solid. C) Plasma. D) None of the above. Show Answer Correct Answer: A) Liquid. 58. Which answer makes a correct statement? A) Physical change only changes the size. B) Physical change only changes the color. C) Physical changes begin and end with the same matter. D) Physical changes change the matter into something total different. Show Answer Correct Answer: C) Physical changes begin and end with the same matter. 59. Evaporation is a physical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. What percent of elements are metals? A) 20%. B) 10%. C) 100%. D) 75%. Show Answer Correct Answer: D) 75%. ← PreviousNext →Related QuizzesScience QuizzesClass 7 QuizzesClass 7 Science Chapter 5 Physical And Chemical Changes Quiz 1Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 2Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 3Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 4Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 5Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 6Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 7Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books