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 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A piece of paper burns. A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical Change. 2. Molecules in a solid move A) Very fast. B) Fast. C) Very slow. D) None of the above. Show Answer Correct Answer: C) Very slow. 3. Browning of an apple after it is cut is an example of ..... A) Reversible change. B) Biological change. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 4. Which one describes a physical change? A) The composition of the object changes. B) A change where the chemical makeup of an object changes. C) A change where the substance turns into something new. D) A change where the characteristics do not change the substance. Show Answer Correct Answer: D) A change where the characteristics do not change the substance. 5. Painting a piece of wood A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 6. Definite volume but not definite shape A) Solid. B) Liquid. C) Gas. D) Solid, liquid and gas. Show Answer Correct Answer: B) Liquid. 7. Why is it always advised not to play with fireworks? A) If a flying firework lands on a structure, or stationary object, it can cause a fire. B) Areas that are dry, or worse, in a drought, are especially vunerable. C) All the above. D) None of the above. Show Answer Correct Answer: A) If a flying firework lands on a structure, or stationary object, it can cause a fire. 8. No Definite Shape and No Definite Volume A) Gas. B) Liquid. C) Solid. D) None of the above. Show Answer Correct Answer: A) Gas. 9. A physical change is named as such because ..... A) It involves changes in physical properties of a substance. B) It involves the formation of new products. C) It is accompanied by a transfer of energy. D) It is a reversible process. Show Answer Correct Answer: A) It involves changes in physical properties of a substance. 10. Paper burning and metal rusting are examples of a A) Chemical property. B) Physical change. C) Chemical change. D) Physical property. Show Answer Correct Answer: C) Chemical change. 11. During Photosynthesis energy is absorbed. What kind of reaction is it? A) Physical. B) Exothermic. C) Photothermic. D) Endothermic. Show Answer Correct Answer: D) Endothermic. 12. In a chemical reaction the matter that you start with is called A) Reactant. B) Shape. C) Evaporation. D) Solution. Show Answer Correct Answer: A) Reactant. 13. Fireworks exploding and producing bright colors A) Physcial change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 14. Monica and Andre are investigating the differences between physical andchemical changes.They list their observations below.Physical changesice meltinga burning fireChemical changescrushing a cangas formingcutting paperWhich of the following observations did Monica and Andre label incorrectly? A) Ice melting. B) A burning fire and crushing a can. C) Gas forming. D) Fireworks. Show Answer Correct Answer: B) A burning fire and crushing a can. 15. The chemical name of baking soda is ..... A) Sodium Hydrogen carbonate. B) Sodium carbonate. C) Bleaching powder. D) Barium Carbonate. Show Answer Correct Answer: A) Sodium Hydrogen carbonate. 16. How can energy be transferred from one organism to another? A) The energy stored in the molecules of one organism is transferred to another organism. B) The matter stored in the molecules of one organism is transferred to another organism. C) The photosynthesis stored in the molecules of one organism is transferred to another organism. D) None of the above. Show Answer Correct Answer: A) The energy stored in the molecules of one organism is transferred to another organism. 17. State of matter that attractive forces are too weak to keep molecules close together so they move freely and rapidly. A) Gas. B) Plasma. C) LIQUI. D) Solid. Show Answer Correct Answer: A) Gas. 18. A change in which matter stays the same A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 19. The ability of matter to conduct electric current or heat A) Weight. B) Conductivity. C) Mass. D) Solubility. Show Answer Correct Answer: B) Conductivity. 20. What instrument would you use to detect an endothermic or exothermic reaction? A) Triple beam balance. B) Ruler. C) Thermometer. D) None of the above. Show Answer Correct Answer: C) Thermometer. 21. Is sqeezing organges to make orange juice a phyical or chemcial change? A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 22. When a liquid changes to a gas, it A) A. evaporates. B) B. condenses. C) C. freezes. D) None of the above. Show Answer Correct Answer: A) A. evaporates. 23. Which observation would best indicate a physical change has occurred? A) Formation of a precipitate. B) Change in temperature. C) Change in shape. D) Change in color. Show Answer Correct Answer: C) Change in shape. 24. An ice cream cone melting is a A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 25. Hydrochloric acid reacts with magnesium to produce hydrogen gass A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 26. Give two examples of chemical changes. A) Boiling water. B) 1. Rusting of iron 2. Burning of wood. C) Freezing water. D) Mixing salt and sugar. Show Answer Correct Answer: B) 1. Rusting of iron 2. Burning of wood. 27. Burning of wick is A) Physical Change. B) Chemical Change. C) None of these. D) None of the above. Show Answer Correct Answer: B) Chemical Change. 28. A liquid and a solid are combined to form a mixture. Which procedure would most likely produce evidence that a chemical change occurs? A) Observe the color both of the liquid and the solid before mixing. B) Measure the volume of the mixture after the components were combined. C) Determine the time it took for the liquids to combine completely. D) Record the temperature of the substances before and after mixing. Show Answer Correct Answer: D) Record the temperature of the substances before and after mixing. 29. Billy forms a clay figure of a frog in art class. Which of the following occurred when Billy created the clay figure? A) He made a new substance from the clay. B) He physically changed the modeling clay. C) He created new atoms in the modeling clay. D) He changed the chemical properties of the clay. Show Answer Correct Answer: B) He physically changed the modeling clay. 30. The reason for a physical change to be named as such is that the: A) Change occurs only in physical properties. B) Transfer of energy takes place. C) Is a reversible change. D) All of the above. Show Answer Correct Answer: A) Change occurs only in physical properties. 31. The statue of liberty turning green is an example of a ..... A) Chemical change. B) Physical change. C) A statute become old. D) Painting. Show Answer Correct Answer: A) Chemical change. 32. Adding heat causes the molecules of water to move slower and closer together, resulting in a change of state. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 33. Which of the following is incorrect for a chemical reaction? A) A gas may be evolved. B) A color change may take place. C) Sound may be produced. D) Heat may be given out but never absorbed. Show Answer Correct Answer: D) Heat may be given out but never absorbed. 34. An example of chemical and irreversible change is A) Baking of cupcakes. B) Jumping on the sofa. C) Shredding of paper. D) Cutting a log of wood. Show Answer Correct Answer: A) Baking of cupcakes. 35. A physical change (a) A) A. changes the physical properties of. B) Creates a new substance and cannot. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. changes the physical properties of. 36. Blue Color:Chemical or Physical Property A) Chemical Property. B) Physical Property. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Property. 37. What type of change involves a reaction that forms new and different substances? A) Mechanical change. B) Electrical change. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 38. Light used to produce food in plants A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 39. What type of change can be easily reversed? A) Chemical change. B) Physical change. C) Both chemical and physical changes. D) Neither physical or chemical changes. Show Answer Correct Answer: B) Physical change. 40. Baking a cake is an example of a chemical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 41. What do we call the molecules that are present at the end of a chemical reaction? A) Products. B) Reactants. C) Ingredients. D) Atoms. Show Answer Correct Answer: A) Products. 42. Why does a chemical change occur when iron rusts? A) The weight of the iron decreases, showing a chemical reaction. B) The color of the iron changes, indicating a chemical change. C) The composition of the iron is altered, resulting in the formation of a new substance. D) The temperature of the iron increases, causing a chemical reaction. Show Answer Correct Answer: C) The composition of the iron is altered, resulting in the formation of a new substance. 43. Which action would be a chemical change? A) Melting chocolate. B) Freezing water. C) Tearing paper. D) Cleaning pennies. Show Answer Correct Answer: D) Cleaning pennies. 44. Which of the following tells you that a chemical change may have occurred? A) Change in color. B) Melting. C) Vaporizing. D) Change Shape. Show Answer Correct Answer: A) Change in color. 45. Ice cream freezing A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 46. Chemical or Physical change?Sharpening a pencil A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 47. Properties like size, shape, colour, state of a substance are A) Chemical properties. B) Physico-chemical properties. C) Physical properties. D) Mental properties. Show Answer Correct Answer: C) Physical properties. 48. Jace measures 20 grams of water in a pan and then freezes it. A day later he takes the ice cubes out of the pan and notices it is larger than before. What will it weigh? A) 10 grams. B) 20 grams. C) 30 grams. D) 40 grams. Show Answer Correct Answer: B) 20 grams. 49. Jack has a rock. The rock has a mass of 14g and a volume of 2cm$^{3}$. What is the density of the rock? A) 7 g/cm$^{3}$. B) 28 g/cm$^{3}$. C) 1/7 g/cm$^{3}$. D) 7 mL. Show Answer Correct Answer: A) 7 g/cm$^{3}$. 50. Which one is a chemical property? A) Odor. B) Combustibility. C) Solubility. D) All of the above. Show Answer Correct Answer: D) All of the above. 51. ..... begins and end with the same substance A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 52. What happens when the food goes to the small intestine? A) Nutrients gets into the blood. B) The food keeps on going. C) Nothing. D) None of the above. Show Answer Correct Answer: A) Nutrients gets into the blood. 53. Chemical or Physical change?Rust forming on a car A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 54. ..... is the amount of space that an object takes up. A) Volume. B) Room. C) Space. D) Density. Show Answer Correct Answer: A) Volume. 55. The best way to separate a mixture of pennies and paper clips is by A) Using a strainer. B) Shape. C) Using a magnet. D) Solution. Show Answer Correct Answer: C) Using a magnet. 56. If there is a change in color, production of light, production of heat, production of gas, production of smell or formation of a new substance. A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 57. Peeling a carrot is an example of a A) Physical change. B) Chemical property. C) Chemical change. D) Physical property. Show Answer Correct Answer: A) Physical change. 58. In a chemical reaction, bonds are broken and new bonds are formed that create new substances. The bonds that are broken are called what? A) Reactants. B) Atoms. C) Catalysts. D) Products. Show Answer Correct Answer: A) Reactants. 59. Which type of change are irreversible? A) Changes in Temperature. B) Chemical Changes. C) Changes in State. D) Physical Changes. Show Answer Correct Answer: B) Chemical Changes. 60. Juan observes these properties of an unknown substance. The substance is white, has a crystaline structure, dissolves in water and burns when a flame is applied. What is a chemical property of the substance? A) Color. B) Burns. C) Crystaline structure. D) Dissolves. Show Answer Correct Answer: B) Burns. ← 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