This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 17 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A chemical reaction accompanied by the releasing of heat. A) Endothermic. B) Exothermic. C) Mesothermic. D) Misothermic. Show Answer Correct Answer: B) Exothermic. 2. What happens to matter during melting? A) Solid turns into liquid. B) Liquid turns into solid. C) All the above. D) None of the above. Show Answer Correct Answer: A) Solid turns into liquid. 3. If it is a hot sunny day and you have a cold glass of water filled with ice cubes. You notice that drops of water form on the outside of the glass. This is called ..... A) A. evaporation. B) B. condensation. C) C. precipitation. D) None of the above. Show Answer Correct Answer: B) B. condensation. 4. Which statement best defines Mechanical Energy? A) Energy produced by a machine or moving part. B) Energy that is produced by an electrical current in a circuit. C) Energy from the sun. D) Energy that travels in waves due to vibrations. Show Answer Correct Answer: A) Energy produced by a machine or moving part. 5. What is the definition of a chemical change? A) Characteristics that describe how a substance behaves under different conditions. B) Alteration in the physical state of matter without changing its chemical composition. C) Transformation that results in the creation of new substances. D) Inherent characteristics that help us identify and describe matter. Show Answer Correct Answer: C) Transformation that results in the creation of new substances. 6. In the context of digestion, which of the following is a chemical change? A) The emulsification of fats by bile. B) The absorption of water in the large intestine. C) The grinding of food by teeth. D) The movement of food through the esophagus. Show Answer Correct Answer: A) The emulsification of fats by bile. 7. Which of the following isn't a chemical change? A) Digesting food. B) Boiling water. C) Fireworks. D) Baking bread. Show Answer Correct Answer: B) Boiling water. 8. A car has the ability to rust A) Chemical Change. B) Physical Change. C) Chemical Property. D) Physical Property. Show Answer Correct Answer: C) Chemical Property. 9. A ..... change produces one or more new substances. A) Chemical. B) Physical. C) Liquid. D) Solid. Show Answer Correct Answer: A) Chemical. 10. Which of the following could indicate that a chemical change took place? A) Change in color. B) Production of Energy. C) Formation of Gas. D) All are correct. Show Answer Correct Answer: D) All are correct. 11. What is the process of a gas changing into a liquid called? A) Vaporization. B) Sublimation. C) Condensation. D) Evaporation. Show Answer Correct Answer: C) Condensation. 12. A new substance is formed in a physical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. Is a change in shape a chemical or physical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 14. Nail rusting A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 15. Is a a rusting bicycle a chemical or physical change? A) Chemcial. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemcial. 16. Would peristalsis be considered a physical or chemical change? A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 17. Temperature at which a substance changes from solid to liquid A) Conductivity. B) Melting Point. C) Hardness. D) Boiling Point. Show Answer Correct Answer: B) Melting Point. 18. Which statement best describes why baking a cake is an example of a chemical change? A) The process takes place in an oven. B) The process requires heat energy. C) The process cannot be reversed. D) The process can be repeated. Show Answer Correct Answer: C) The process cannot be reversed. 19. Where does most digestion and absorption occur? A) Stomach. B) Colon. C) Small intestine. D) Esophagus. Show Answer Correct Answer: C) Small intestine. 20. Phase change from a solid to a gas. A) Sublimation. B) Deposition. C) Condensation. D) Evaporation. Show Answer Correct Answer: A) Sublimation. 21. Is spoiling food a physical or chemical change? A) Phyiscal. B) Chemical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical. 22. Identify the characteristics of a chemical change. A) Change in both physical and chemical properties. B) No new products are formed. C) Temporary and reversible. D) Energy change is minimal. Show Answer Correct Answer: A) Change in both physical and chemical properties. 23. Matter that always fills the shape in a container, such as air. A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 24. Weight measures the pull of what on an object? A) Height. B) Width. C) Length. D) Gravity. Show Answer Correct Answer: D) Gravity. 25. Chex mix is an example of a A) Solution. B) Chemical change. C) Mixture. D) None of the above. Show Answer Correct Answer: C) Mixture. ← 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