This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. 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. 4. 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. 5. 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. 6. What is the freezing point of water on the Farenheit scale? A) 0 degrees. B) 212 degrees. C) 32 degrees. D) 100 degrees. E) 150 degrees. Show Answer Correct Answer: C) 32 degrees. 7. Which of the following describes a chemical change? A) Melting butter. B) Milk spoiling. C) Cutting paper. D) Water evaporating. Show Answer Correct Answer: B) Milk spoiling. 8. 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) Chemical. B) Nuclear. C) Physical. D) Musical. Show Answer Correct Answer: C) Physical. 9. A rapid chemical reaction between a substance and oxygen, often producing heat and light. A) Combustion. B) Solubility. C) Corrosion. D) Decomposition reaction. Show Answer Correct Answer: A) Combustion. 10. How could the components of a saltwater solution be separated? A) By filtering out the salt. B) By boiling the solution, leaving the salt behind. C) By pouring it into another container. D) By increasing the pressure. Show Answer Correct Answer: B) By boiling the solution, leaving the salt behind. 11. 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. 12. 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. 13. 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. 14. 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. 15. What is condensing? A) Physical property. B) Chemical property. C) Chemical change. D) Physical change. Show Answer Correct Answer: D) Physical change. 16. Which of the following would be considered a homogeneous mixture A) Sweet Tea. B) Vegetable soup. C) 24 Karat Gold. D) Distilled water. Show Answer Correct Answer: A) Sweet Tea. 17. 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. 18. During an experiment, a student mixes vinegar and baking soda. What type of change occurs? A) Physical change. B) Chemical change. C) No change. D) Phase change. Show Answer Correct Answer: B) Chemical change. 19. Another term for a chemical change is A) Chemical reaction. B) Physical change. C) Reactant. D) Product. Show Answer Correct Answer: A) Chemical reaction. 20. Which of the following is NOT an evidence of chemical change taking place in matter? A) Formation of bubbles. B) Production of light. C) Change in odor. D) Change in state. Show Answer Correct Answer: D) Change in state. 21. The presence of ..... in sea water makes the process of rust formation on ships faster. A) Salt. B) Sugar. C) Acid. D) Base. Show Answer Correct Answer: A) Salt. 22. Which of the following is a characteristic of a chemical change? A) Change in state. B) Formation of a new substance. C) Change in size. D) Change in shape. Show Answer Correct Answer: B) Formation of a new substance. 23. 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. 24. 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. 25. 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. ← PreviousNext →Related 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 8Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 9Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books