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 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A solution is a mixture of one or more substances ..... evenly into another substance. A) Carried. B) Split. C) Evaporated. D) Dissolved. Show Answer Correct Answer: D) Dissolved. 2. What happens to the mass during a chemical change? A) The mass fluctuates. B) The mass increases. C) The mass decreases. D) The mass remains the same. Show Answer Correct Answer: D) The mass remains the same. 3. Iron's ability to rust is an example of a ..... A) Physical Property. B) Chemical Change. C) Chemical Property. D) Physical Change. Show Answer Correct Answer: C) Chemical Property. 4. Stanley left an ice cube on his kitchen counter. An hour later, Stanley observed that the ice cube melted. Which statement best describes this change? A) Ice melting is a chemical change because it may be reversed. B) Ice melting is a chemical change because a new substance is created. C) Ice melting is a physical change because it may be reversed. D) Ice melting is a physical change because a new substance is created. Show Answer Correct Answer: C) Ice melting is a physical change because it may be reversed. 5. Students heat a white solid in a test tube over a flame. What observation would tell the students that the solid has become a new substance? A) The solid in in the form of crystals. B) The solid begins to melt within the test tube. C) The color of the solid changes to amber. D) The temperature of the solid increases. Show Answer Correct Answer: C) The color of the solid changes to amber. 6. Which of these is a chemical property or chemical change? A) 4 bananas are all the same size and shape. B) The bananas all have a bumpy texture. C) The bananas are cut into slices. D) The bananas turn brown after sitting out for a day. Show Answer Correct Answer: D) The bananas turn brown after sitting out for a day. 7. Dyeing your hair blue for the pep rally is an example of a ..... A) Physical Property. B) Physical Change. C) Chemical Change. D) Chemical Property. Show Answer Correct Answer: B) Physical Change. 8. The fact that gold can not react with oxygen is an example of a ..... A) Physical Property. B) Chemical Change. C) Chemical Property. D) Physical Change. Show Answer Correct Answer: C) Chemical Property. 9. Heat water in a pan on a stove, and observe the steam that forms as the state of matter of the water changes.What type of change is above? A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 10. The amount of space occupied by an object or substance, measured in cubic units. A) Solubility. B) Matter. C) Mass. D) Volume. Show Answer Correct Answer: D) Volume. 11. Give an example of a physical change. A) Boiling water into steam. B) Melting ice into water. C) Burning wood into ash. D) Mixing salt and water. Show Answer Correct Answer: B) Melting ice into water. 12. Think this through:Can the same substance undergo both a physical and a chemical change at the same time. A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 13. Water begins to boil and turn to a gas at what temperature? A) 90 degrees Celsius. B) 100 degrees Celsius. C) 40 degrees Celsius. D) 0 degrees Celsius. Show Answer Correct Answer: B) 100 degrees Celsius. 14. List two properties of physical changes. A) Physical changes always result in a change in color. B) Physical changes only occur in solids. C) Physical changes always involve a change in temperature. D) 1. Physical changes do not change the chemical composition of a substance. 2. Physical changes are usually reversible. Show Answer Correct Answer: D) 1. Physical changes do not change the chemical composition of a substance. 2. Physical changes are usually reversible. 15. The process in which substances known as reactants, are converted into new substances known as products. A) Chemical Change. B) Chemical Reaction. C) Reactants. D) Products. Show Answer Correct Answer: B) Chemical Reaction. 16. Which of these best describes physical properties? A) Physical properties behave identically for all matter under the same conditions. B) Physical properties can be observed without changing the identity of a substance. C) Physical properties include flammability. D) Physical properties cause atoms and molecules to change structure when substances are mixed. Show Answer Correct Answer: B) Physical properties can be observed without changing the identity of a substance. 17. Which object would be most likely to rust? A) A paper clip. B) A glass marble. C) A plastic comb. D) An iron nail. Show Answer Correct Answer: D) An iron nail. 18. Which of these is NOT a chemical change during a reaction? A) Rusting metal. B) Burning wood. C) Digesting food. D) Folding paper. Show Answer Correct Answer: D) Folding paper. 19. Heating a solid until it changes color and produces an odor, and noting the solid cannot be changed back is an example of A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical Change. 20. Acid in stomach, breaking down food. A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 21. When water freezes ..... A) Heat is removed, and a solid is formed. B) Heat is removed and a liquid is formed. C) Heat is added and a solid is formed. D) Heat is added and a liquid is formed. Show Answer Correct Answer: A) Heat is removed, and a solid is formed. 22. Tearing paper into small pieces is an example of a A) Mixture. B) Physical change. C) Chemical change. D) None of the above. Show Answer Correct Answer: B) Physical change. 23. I had a apple;i cut it and kept it for a while.my mom says that both physical and chemical changes had taken place.is she A) Right. B) Wrong. C) All the above. D) None of the above. Show Answer Correct Answer: A) Right. 24. Anything that occupies space and has mass, existing in three states-solid, liquid, and gas. A) Volume. B) Mass. C) Matter. D) Solubility. Show Answer Correct Answer: C) Matter. 25. Heterotrophs abtain energy from other organism. How do autotrophs(plants) abtain energy? A) They obtain energy by eating other organism. B) They capture radiant energy and make their own food. C) They eat the soil underneath them. D) None of the above. Show Answer Correct Answer: B) They capture radiant energy and make their own food. 26. What is the freezing point of water on the Celsius scale? A) 212 degrees. B) 32 degrees. C) 100 degrees. D) 0 degrees. Show Answer Correct Answer: D) 0 degrees. 27. When iron is exposed to air over a long period of time, it forms rust. This is an example of what? A) Burning:a new substance. B) A new substance forming. C) Color change:no new substance. D) Shape change:no new substance. Show Answer Correct Answer: B) A new substance forming. 28. A ..... change occurs when matter changes size, shape orv form A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 29. 2H$_{2}$ + O$_{2}$ $\rightarrow$ 2H$_{2}$O What is the product? A) $\rightarrow$. B) 2h $ _ {2} $ or. C) 2h $ _ {2} $ + or $ _ {2} $. D) None of the above. Show Answer Correct Answer: B) 2h $ _ {2} $ or. 30. Scenario:A piece of paper is torn into small pieces. Does a chemical or physical change occur? A) Change in color. B) Chemical change. C) Change in state. D) Physical change. Show Answer Correct Answer: D) Physical change. 31. Evidence of chemical change A) Color change. B) Bubbles. C) Change in shape. D) Precipitate forms. Show Answer Correct Answer: D) Precipitate forms. 32. When two liquids are mixed and a solid is formed, the new solid is called a ..... A) Palpital. B) Precipitate. C) Levitate. D) Bad date. Show Answer Correct Answer: B) Precipitate. 33. Burning is a ..... A) Chemical property. B) Physical change. C) Chemical change. D) Physical property. Show Answer Correct Answer: C) Chemical change. 34. Reacting with vinegar A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 35. Rusting cannot be prevented by A) By coating paper. B) By coating iron. C) Galvanization. D) By painting. Show Answer Correct Answer: A) By coating paper. 36. Which activity is an example of a physical change? A) A metal chain rusts when left outside. B) An ice cube melts into liquid water when heated. C) An apple turns brown when it is exposed to air. D) A piece of wood produces heat when it is burned. Show Answer Correct Answer: B) An ice cube melts into liquid water when heated. 37. If you mix two liquids, and they create bubbles and fizz, it's most likely a ..... change. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 38. Two clear substances are combined inside a plastic bag. The plastic bag is tightly sealed. What observation would indicate that mixing the chemical produced a new substance? A) The substances are clear. B) The bag is transparent. C) The substance in the bag becomes warm. D) The bag can hold a liquid. Show Answer Correct Answer: C) The substance in the bag becomes warm. 39. Other examples of chemical changes include EXCEPT A) A banana changes from yellow to brown. B) Milk sours and turns from a liquid to a solid. C) Bubble form when baking soda is added to vinegar. D) Bubbles form in water as it heats up creating water vapor. Show Answer Correct Answer: D) Bubbles form in water as it heats up creating water vapor. 40. Pick the answers that states a chemical change. A) Tin metal is placed over a fire and heats up. B) Strip of paper is burned and a new substance is formed. C) Water is boiled and disappears. D) Solid wax melts. Show Answer Correct Answer: B) Strip of paper is burned and a new substance is formed. 41. Chemical or Physical change?Ice melting A) Chemical. B) Physical. C) Neither. D) Both. Show Answer Correct Answer: B) Physical. 42. This is a change in energy that is taken in. A) Physical change. B) Thermal energy. C) Endothermic. D) Exothermic. Show Answer Correct Answer: C) Endothermic. 43. The temperature at which liquid water boils or becomes a gas, 212 degrees Fahrenheit A) Ice Point. B) Hot Point. C) Freezing Point. D) Boiling Point. Show Answer Correct Answer: D) Boiling Point. 44. Boiling 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. 45. Sublimation occurs when a solid changes directly to a gas. A) Ture. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) Ture. 46. Two children in a wading pool notice that the water level is lower than it was the week before. What happened to the water? A) Toys in the pool absorbed some of the water. B) Condensation caused the water to disappear. C) Some of the water evaporated. D) The pool absorbed some of the water. Show Answer Correct Answer: C) Some of the water evaporated. 47. Whate is the example of chemical change? A) Shredding paper. B) Paper into ash. C) Crushing a can. D) Melting an ice cube. Show Answer Correct Answer: B) Paper into ash. 48. When heat is taken away from a container of water, what will happen? A) It will become a gas. B) It will become a solid. C) There will be less mass. D) None of the above. Show Answer Correct Answer: B) It will become a solid. 49. Iron and rust are the same substances. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 50. What is the Law of Conservation of mass? A) Mass is created in a chemical reaction. B) Mass is created in a physical change. C) New chemicals formed from a chemical reaction have a larger overall mass than the original reactants. D) Mass is never created or destroyed. Show Answer Correct Answer: D) Mass is never created or destroyed. 51. Rust is an example of a ..... A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 52. A substance with a definite volume by not definite shape is a ..... A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: B) Liquid. 53. What should be done first to conduct an experiment safely? A) Get any chemical that are needed from the supply cabinet and open the bottles. B) Begin heating any chemicals that will need to be hot. C) Begin mixing any chemicals that are needed for the experiment. D) Read every step of the procedure to make sure they understand it. E) Begin collecting any equipment you think you will need. Show Answer Correct Answer: D) Read every step of the procedure to make sure they understand it. 54. Drying of leaves A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 55. What happens when my glass of water is sitting in the sun and disappears into a gas? A) Burning. B) Evaporation. C) Freezing. D) Melting. Show Answer Correct Answer: B) Evaporation. 56. A cup of water left outside for two days had only half a cup of water left. What happened? A) Condensation; physical change. B) Condensation; chemical change. C) Evaporation; chemical change. D) Evaporation; physical change. Show Answer Correct Answer: D) Evaporation; physical change. 57. Sugar dissolves in water A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 58. While completing a science experiment, James notices that he has created a new substance. What type of change took place? A) Increase in mass. B) Physical change. C) No change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 59. Properties that can be measured or observed without matter changing to an entirely different substance. A) Physical Change. B) Physical Properties of Matter. C) Chemical Change. D) Chemical Properties of Matter. Show Answer Correct Answer: B) Physical Properties of Matter. 60. What happens in a physical change that distinguishes it from a chemical change? A) In a physical change no new substances are produced. B) The substance will change into a new substance but return back to the original substance eventually in a physical change. C) A completely new substance forms in a physical change. D) In a physical change a new substance is produced as a clone of the original substance. Show Answer Correct Answer: A) In a physical change no new substances are produced. ← 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