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 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What properties can be changed in a phsycial change? A) Size. B) Solubility. C) Flammibility. D) Shape. Show Answer Correct Answer: D) Shape. 2. What happens to water when cooled to 0 degrees C (or 32 degrees F)? A) It will only get a little cooler?. B) It will only get a little warmer. C) It will boil and change into a gas. D) It will freeze and change into a solid. Show Answer Correct Answer: D) It will freeze and change into a solid. 3. Bubbles form when water boils. Is this evidence of chemical change? A) No, because water doesn't react with anything. B) Yes, because the water is reacting. C) Yes, because water is changing. D) No, because the vapor is still water. Show Answer Correct Answer: D) No, because the vapor is still water. 4. Rust is chemical A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. A chemical change is a change in A) An item that creates a new substance, releases light or heat. B) An item's look or state of matter. C) An item's sound. D) An item's properties such as size, shape, density. Show Answer Correct Answer: A) An item that creates a new substance, releases light or heat. 6. Digestion of food is A) Chemical change. B) Physical change. C) Crystallization. D) Rusting. Show Answer Correct Answer: A) Chemical change. 7. We can prevent rusting of iron to apply a coat of A) Paint. B) Grease. C) Zinc. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. A mixture of sand and gravel can be separated by putting it in a container with holes that only the sand can pass through. This method works to separate the mixture because sand and gravel differ in which physical property? A) State of matter. B) Size. C) Color. D) Texture. Show Answer Correct Answer: B) Size. 9. Which property describes how a material changes into other materials? A) Physical. B) Chemical. C) Height. D) None of the above. Show Answer Correct Answer: B) Chemical. 10. Olivia had a beaker with a small amount of baking soda. She added a few drops of vinegar to the baking soda and observed fizzing and bubbling. Based on her observation, which of these can Vanessa determine about the new substance formed by mixing the baking soda and vinegar? A) It was a gas. B) It was a conductor. C) It was magnetic. D) It was hot. Show Answer Correct Answer: A) It was a gas. 11. An example of a physical property would be? A) Wood burning. B) Salt dissolved in water. C) Rust on a nail. D) An egg frying. Show Answer Correct Answer: B) Salt dissolved in water. 12. Taking a HUGE bite out of your favorite food and chewing it is ..... A) Chemical digestion. B) Physical change. C) Mechanical digestion. D) Chemical change. Show Answer Correct Answer: C) Mechanical digestion. 13. Which is an example of physical property? A) Reactivity. B) Flammability. C) Color. D) Toxicity. Show Answer Correct Answer: C) Color. 14. A pellet of sodium is sliced in two A) Chemical change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Change. 15. If you mix 1 gram of salt with 50 grams of water, how many grams of matter will you have after the salt is completely dissolved? A) 49 grams. B) 50 grams. C) 51 grams. D) None of the above. Show Answer Correct Answer: C) 51 grams. 16. Salt dissolves in water A) Physical Change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 17. Which property can be measured without changing the material? A) Physical. B) Chemical. C) Height. D) None of the above. Show Answer Correct Answer: A) Physical. 18. Rust on an iron fence A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 19. When one substance is dissolved into another and they are mixed evenly you create a A) Solution. B) Mixture. C) Product. D) Temperature. Show Answer Correct Answer: A) Solution. 20. Rust on an iron bar is an example of chemical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. Evidence of a physical change A) Burning. B) Fizzing. C) Change in state of matter. D) None of the above. Show Answer Correct Answer: C) Change in state of matter. 22. Put an antacid tablet in water, and when the antacid and water mix, observe the bubbles that form as a new substance is created. A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical Change. 23. Why does a physical change occur when ice melts into water? A) The chemical composition of the ice changes, leading to the formation of water. B) The molecules in the solid ice rearrange themselves into the liquid state without changing their chemical composition. C) The temperature of the ice increases, causing it to change into water. D) The ice absorbs heat from the surroundings, causing it to change into water. Show Answer Correct Answer: B) The molecules in the solid ice rearrange themselves into the liquid state without changing their chemical composition. 24. A ..... results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. A) Combustion. B) Physical change. C) Chemical change. D) Amino acid. Show Answer Correct Answer: C) Chemical change. 25. A change that results in the formation of new chemical substances A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 26. The ability to evaporate A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 27. Cutting a tree limb into logs is (a) ..... and burning them in the fireplace is (b) ..... A) A Physical Change(b) A Chemical Change. B) A Chemical Change(b) Also a Chemical Change. C) A Physical Change(b) Also a Physical Change. D) A Chemical Change(b) A Physical Change. Show Answer Correct Answer: A) A Physical Change(b) A Chemical Change. 28. What is an example of a physical change that occurs during digestion? A) Digestive enzymes in the stomach break down proteins into amino acids. B) Saliva in the mouth converts starches into simple sugars. C) Pancreatic enzymes break down fats into fatty acids. D) Teeth grind and tear food into smaller pieces in the mouth. E) Stomach acid breaks down food into chyme. Show Answer Correct Answer: D) Teeth grind and tear food into smaller pieces in the mouth. 29. Read the statement:Combining two liquids that give off heat and gas would provide evidence of a chemical change because the particles react to make a new material with different properties.What evidence let's you know a chemical change has occurred? A) Mixture of substances. B) Temperature change. C) Gas evaporation. D) None of the above. Show Answer Correct Answer: B) Temperature change. 30. Freezing is the process of a liquid becoming a solid. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. When you crumple a piece of paper, it's a ..... change. A) Physical. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical. 32. During a physical change, a substance undergoes a change in its: A) Physical properties. B) Chemical properties. C) Both (a) and (b). D) None of these. Show Answer Correct Answer: A) Physical properties. 33. What happens to matter during condensation? A) Gas turns into liquid. B) Liquid turns into gas. C) All the above. D) None of the above. Show Answer Correct Answer: A) Gas turns into liquid. 34. Reacts with Water:Chemical or Physical Property A) Chemical Property. B) Physical Property. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Property. 35. What type of reaction happens in a bonfire? A) Scary. B) Exothermic. C) Endothermic. D) No reaction at all. Show Answer Correct Answer: B) Exothermic. 36. When wood is burned the cellulose combines with oxygen to create carbon dioxide, water vapor and ashes. What are the ashes? A) The ashes are the product of the reaction. B) The ashes are the reactant to the product. C) The ashes are a mixture. D) The ashes are a physical change. Show Answer Correct Answer: A) The ashes are the product of the reaction. 37. What is the freezing point of water on the Farenheit scale? A) 0 degrees. B) 100 degrees. C) 150 degrees. D) 212 degrees. E) 32 degrees. Show Answer Correct Answer: E) 32 degrees. 38. A student heats a beaker of water with a hot plate and over time, the water begins to bubble, the volume decreases and vapor is visible. This is an example of a ..... change. A) Musical. B) Chemical. C) Physical. D) Nuclear. Show Answer Correct Answer: C) Physical. 39. A rapid chemical reaction between a substance and oxygen, often producing heat and light. A) Corrosion. B) Decomposition reaction. C) Solubility. D) Combustion. Show Answer Correct Answer: D) Combustion. 40. How could the components of a saltwater solution be separated? A) By increasing the pressure. B) By filtering out the salt. C) By pouring it into another container. D) By boiling the solution, leaving the salt behind. Show Answer Correct Answer: D) By boiling the solution, leaving the salt behind. 41. What happens to matter during freezing? A) Solid turns liquid. B) Liquid turns into solid. C) All the above. D) None of the above. Show Answer Correct Answer: B) Liquid turns into solid. 42. When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change? A) The ice melting is a chemical change because the water changes form. B) The ice melting is a physical change because the water may be frozen again. C) The water and coffee mixing is a chemical change because the liquids change color. D) The water and coffee mixing is a physical change because the mixture forms bubbles. Show Answer Correct Answer: B) The ice melting is a physical change because the water may be frozen again. 43. When a candle burns, both physical and chemical changes occurs. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 44. Tearing paper 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. What is condensing? A) Chemical property. B) Chemical change. C) Physical change. D) Physical property. Show Answer Correct Answer: C) Physical change. 46. Which of the following would be considered a homogeneous mixture A) 24 Karat Gold. B) Distilled water. C) Sweet Tea. D) Vegetable soup. Show Answer Correct Answer: C) Sweet Tea. 47. When water freezes to form ice ..... A) It changes the physical properties of water, but does not create a new substance. B) It creates a new substance and cannot be undone. C) All the above. D) None of the above. Show Answer Correct Answer: A) It changes the physical properties of water, but does not create a new substance. 48. During an experiment, a student mixes vinegar and baking soda. What type of change occurs? A) Physical change. B) No change. C) Chemical change. D) Phase change. Show Answer Correct Answer: C) Chemical change. 49. Another term for a chemical change is A) Product. B) Reactant. C) Chemical reaction. D) Physical change. Show Answer Correct Answer: C) Chemical reaction. 50. Which of the following is NOT an evidence of chemical change taking place in matter? A) Change in odor. B) Production of light. C) Change in state. D) Formation of bubbles. Show Answer Correct Answer: C) Change in state. 51. The presence of ..... in sea water makes the process of rust formation on ships faster. A) Sugar. B) Acid. C) Base. D) Salt. Show Answer Correct Answer: D) Salt. 52. Which of the following is a characteristic of a chemical change? A) Formation of a new substance. B) Change in shape. C) Change in state. D) Change in size. Show Answer Correct Answer: A) Formation of a new substance. 53. What happens when a new substance is produced during a reaction? A) Chemical change. B) Physical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical change. 54. A candle burning is a A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 55. An ice cube melting in a glass A) Physcial change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physcial change. 56. A physical change is a change A) That creates a smell. B) That creates a new substance or emits light or heat. C) In an item's properties like its shape, size or density. D) That cannot be undone. Show Answer Correct Answer: C) In an item's properties like its shape, size or density. 57. Sodium and potassium react violently with water A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical change. 58. Involves how a substance will interact with something else A) Chemical property. B) Physical property. C) Physical change. D) Chemical change. Show Answer Correct Answer: D) Chemical change. 59. Which of the following changes is accompanied by sound? A) Explosion of fire works. B) Spoilage of food. C) Crumpling of paper. D) Photosynthesis. Show Answer Correct Answer: A) Explosion of fire works. 60. A different chemical substance is formed when: A) A piece of wood breaks. B) A cup breaks. C) A nail rusts. D) A cloth is cut. Show Answer Correct Answer: C) A nail rusts. ← 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