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 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When the temperature of matter decreases the particles ..... A) Speed up and move farther apart. B) Speed up and move closer together. C) Slow down and move farther apart. D) Slow down and move closer together. Show Answer Correct Answer: D) Slow down and move closer together. 2. During a physical change in an object, a change may occur in its A) Size. B) Shape. C) Texture. D) All of these. Show Answer Correct Answer: D) All of these. 3. ..... changes the identity of the substance A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 4. Making a paper airplane A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 5. Spray perfume into the air, and when the air and perfume mix, observe the change in odor that happens asthey mix. A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 6. Does a physical change the substance itself? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 7. The reactants are on the left side of the chemical equation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. A ..... change occurs when a new substance forms A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 9. Changes of state in matter are A) Chemical changes. B) Environmental changes. C) Not occuring in nature. D) Physical changes. Show Answer Correct Answer: D) Physical changes. 10. What happens when a piece of wood burns? A) A physical change takes place. B) The wood loses its gravity. C) The wood becomes a tree again. D) A chemical change takes place. Show Answer Correct Answer: D) A chemical change takes place. 11. The change in which a man cuts down a tree with an axe is an example of A) Chemical reaction. B) Physical change. C) Displacement reaction. D) Chemical change. Show Answer Correct Answer: B) Physical change. 12. Define a Physical Property A) A property of matter that does not change what the object is when you observe it. B) A property in which a new substance is created. C) A property in which stops a chemical reaction from occuring. D) A property which makes the object smell or taste different. Show Answer Correct Answer: A) A property of matter that does not change what the object is when you observe it. 13. A characteristic that can be observed or measured without changing the composition of the substance. A) Physical change. B) Physical Property. C) Chemical Property. D) Chemical change. Show Answer Correct Answer: B) Physical Property. 14. If you run a magnet through a beaker of water, iron filings, and salt mixed together, what will be left behind in the beaker? A) Only water molecules. B) Only salt molecules. C) A solution of water and salt molecules. D) Only the iron filings. Show Answer Correct Answer: C) A solution of water and salt molecules. 15. Which of the following is an example of a chemical change in everyday life? A) Dissolving sugar in water. B) Baking bread. C) Cutting vegetables. D) Melting butter. Show Answer Correct Answer: B) Baking bread. 16. A chemical reaction between Hydrogen and Oxygen produces water. If 2g of Hydrogen and 4g of Oxygen react together, how much water is produced? A) Not enough information to answer. B) 2g. C) 6g. D) Hgum. Show Answer Correct Answer: C) 6g. 17. Which process is a sign of a chemical change? A) A rotting potato gives off a bad smell. B) A melting block of ice leaves a large puddle. C) A cloud quickly changes shape when blown by the wind. D) A plaster statue breaks when it falls on the floor. Show Answer Correct Answer: A) A rotting potato gives off a bad smell. 18. A change that does not result in a new substance A) Physical change. B) Chemical property. C) Chemical change. D) Physical propert. Show Answer Correct Answer: A) Physical change. 19. What is the role of energy in physical and chemical changes? A) Energy only affects chemical changes, not physical changes. B) Energy is essential for initiating and sustaining physical and chemical changes. C) Energy has no impact on physical and chemical changes. D) Physical and chemical changes can occur without any energy involvement. Show Answer Correct Answer: B) Energy is essential for initiating and sustaining physical and chemical changes. 20. Using a hot plate to heat a solid until it changes color and releases an odor would provide evidence of a chemical change because the particles cannot be changed back. This is what type of change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 21. Temperature changes can cause a ..... change. A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 22. When atoms in reactants are rearranged to form new products, this is a A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 23. A block of metal has a mass of 14.0 Kg and a volume of 2.0 Liters what is the density? A) 2.0 kg/l. B) 7.0 kg/l. C) 14.0 kg/l. D) 0.5 kg/l. Show Answer Correct Answer: B) 7.0 kg/l. 24. What physical change will happen to ice when left in a warm room? A) It will be cold. B) It will be hard and white. C) It melted to water. D) It reacted with oxygen. Show Answer Correct Answer: C) It melted to water. 25. For rusting, presence of ..... and ..... is essential. A) Water only. B) Carbon dioxide and water. C) Oxygen and water. D) Nitrogen and oxygen. Show Answer Correct Answer: C) Oxygen and water. 26. In which of the following examples is a mixture separated by using physical properties? A) Making coffee by using heater water. B) Freezing juice to make flavored ice. C) Using a filter to get the sand out of a puddle. D) Stirring water and salt to make salt water. Show Answer Correct Answer: C) Using a filter to get the sand out of a puddle. 27. Is melting butter for popcorn a chemical or physical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 28. If you mix two substances together in a chemical reaction, what would happen? A) A new substance is formed. B) Nothing changes. C) You begin and end with the same two substances. D) None of the above. Show Answer Correct Answer: A) A new substance is formed. 29. When you break a cracker into pieces it is a A) Chemical change. B) Chemical Weathering. C) Physical change. D) Physical Weathering. Show Answer Correct Answer: C) Physical change. 30. What is digestion? A) Physical property. B) Chemical change. C) Physical change. D) None of the above. Show Answer Correct Answer: B) Chemical change. 31. Which of the following processes is a physical change? A) Evaporation of water. B) Rusting of iron. C) Baking a cake. D) Digesting food. Show Answer Correct Answer: A) Evaporation of water. 32. Roasting a marsh mellow A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 33. Breaking a glass bottle into little pieces A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 34. Name the metal which is used for galvanization? A) Zinc. B) Chromium. C) Aluminum. D) Copper. Show Answer Correct Answer: A) Zinc. 35. A change that alters the form or appearance of a material but does not make the material into another substance is a ..... change. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 36. The substances that are combined during a chemical reaction A) Products. B) Reactants. C) Chemical Change. D) Chemical Reaction. Show Answer Correct Answer: B) Reactants. 37. Which property of a substance depends on how much of the substance there is? A) Mass. B) Boiling Point. C) Density. D) Liquid. Show Answer Correct Answer: A) Mass. 38. Scenario:Cutting a piece of fruit into slices. Does a chemical or physical change occur? A) Physical change. B) Spiritual change. C) Chemical change. D) Emotional change. Show Answer Correct Answer: A) Physical change. 39. How do you know that rusting is a chemical change? A) We just know. B) It changes color. C) The rust. D) Atoms were rearranged to form a new substance. Show Answer Correct Answer: D) Atoms were rearranged to form a new substance. 40. Which of the following is NOT an example of a physical change? A) Sour milk. B) Crumpled paper. C) Pencil sharpening. D) Broken glass. Show Answer Correct Answer: A) Sour milk. 41. What tool would you use to provide evidence that mass is neither created or destroyed in a chemical or physical change? A) Scale. B) Microscope. C) Magnifying glass. D) Thermomter. Show Answer Correct Answer: A) Scale. 42. Which is the best method to prevent rusting? A) Greasing. B) Precipitation. C) Painting. D) Galvanization. Show Answer Correct Answer: C) Painting. 43. What distinguishes each process as a chemical change A) Mixing of substances. B) New substance are created. C) Substances move to different locations. D) Substances are broken into smaller pieces. E) Substances are dissolved. Show Answer Correct Answer: B) New substance are created. 44. Baking a cake 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. 45. Barry lights his candles to get the air hot and make balloon to fly. A) Endothermic. B) Exothermic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Exothermic. 46. Which is an example of a chemical reaction? A) Paper cut into small pieces. B) Atta mixed with salt, water and sugur. C) Baking a bread in an oven. D) Ice cream melting in a bowl. Show Answer Correct Answer: C) Baking a bread in an oven. 47. Which of these does NOT happen during a chemical change? A) New substance(s) are formed with different chemical properties. B) The chemical properties of the beginning substance(s) are the same as those of the end product(s). C) The number of atoms in the reaction stays the same. D) Atomic bonds are formed or break apart. Show Answer Correct Answer: B) The chemical properties of the beginning substance(s) are the same as those of the end product(s). 48. A physical change always results in the formation of a new substance. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 49. What is a common evidence of a physical change? A) Change in state of matter. B) Emission of gas. C) Formation of a new substance. D) Change in temperature. Show Answer Correct Answer: A) Change in state of matter. 50. Changing states of matter A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 51. Rocks and sand together would be an example of A) Compound. B) Element. C) Homogeneous mixture. D) Heterogeneous mixture. Show Answer Correct Answer: D) Heterogeneous mixture. 52. In an exothermic reaction, heat is ..... A) Taken in. B) Given out. C) All the above. D) None of the above. Show Answer Correct Answer: B) Given out. 53. Sugars ability to dissolve in water is an example of a ..... A) Physical Change. B) Physical Property. C) Chemical Property. D) Chemical Change. Show Answer Correct Answer: B) Physical Property. 54. Students observed a piece of iron change from shiny to rusty. What caused this change? A) A cold reaction. B) A physical reaction. C) A chemical reaction. D) A heat reaction. Show Answer Correct Answer: C) A chemical reaction. 55. In physical change, the substance formed has different properties than the original substance. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. Define a Chemical Property A) A property of matter that does not change what the object is when its is observed. B) A property in which a new substance is created. C) A property which makes the object smell or taste different. D) A property in which stops a chemical reaction from occuring. Show Answer Correct Answer: B) A property in which a new substance is created. 57. Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water? A) 6. B) 12. C) 18 ounces. D) None of the above. Show Answer Correct Answer: C) 18 ounces. 58. Which process is an example of of a physical change? A) Milk souring. B) Wood burning. C) Metal rusting. D) Ice melting. Show Answer Correct Answer: D) Ice melting. 59. Anything that takes up space is called ..... A) Matter. B) Atoms. C) Muscles. D) None of the above. Show Answer Correct Answer: A) Matter. 60. A ..... change occurs when one or more substances change into entirely new substances. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. ← 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 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 8Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books