This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which of these does NOT happen during a chemical change? A) Atomic bonds are formed or break apart. B) New substance(s) are formed with different chemical properties. C) The number of atoms in the reaction stays the same. D) The chemical properties of the beginning substance(s) are the same as those of the end product(s). Show Answer Correct Answer: D) The chemical properties of the beginning substance(s) are the same as those of the end product(s). 3. Bending metal A) Physical Change. B) Chemical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical Change. 4. 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. 5. What is a common evidence of a physical change? A) Formation of a new substance. B) Change in state of matter. C) Emission of gas. D) Change in temperature. Show Answer Correct Answer: B) Change in state of matter. 6. 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. 7. 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. 8. 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. 9. Sugars ability to dissolve in water is an example of a ..... A) Physical Property. B) Physical Change. C) Chemical Property. D) Chemical Change. Show Answer Correct Answer: A) Physical Property. 10. Students observed a piece of iron change from shiny to rusty. What caused this change? A) A chemical reaction. B) A heat reaction. C) A cold reaction. D) A physical reaction. Show Answer Correct Answer: A) A chemical reaction. 11. 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. 12. 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 stops a chemical reaction from occuring. C) A property in which a new substance is created. D) A property which makes the object smell or taste different. Show Answer Correct Answer: C) A property in which a new substance is created. 13. 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. 14. Which process is an example of of a physical change? A) Ice melting. B) Milk souring. C) Metal rusting. D) Wood burning. Show Answer Correct Answer: A) Ice melting. 15. Anything that takes up space is called ..... A) Matter. B) Atoms. C) Muscles. D) None of the above. Show Answer Correct Answer: A) Matter. 16. 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. 17. Properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. A) Evaporation. B) Density. C) Physical Properties Of Matter. D) Chemical Properties of Matter. Show Answer Correct Answer: D) Chemical Properties of Matter. 18. Scenario:Ice melts into water when heated. Does a chemical or physical change occur? A) Physical change. B) Chemical change. C) Emotional change. D) Biological change. Show Answer Correct Answer: A) Physical change. 19. Cooking an egg A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 20. Reactivity of a subject is a ..... change. A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 21. A chemical change ..... the identity of the substance. A) Changes. B) Maintains. C) All the above. D) None of the above. Show Answer Correct Answer: A) Changes. 22. Which of these is NOT a sign of a chemical reaction? A) A phase change. B) Formation of a precipitate. C) A color change. D) A temperature change. Show Answer Correct Answer: A) A phase change. 23. Is a change in size evidence for 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. 24. What kind of energy is food? A) Thermal energy. B) Mechanical energy. C) Solar energy. D) Chemical energy. Show Answer Correct Answer: D) Chemical energy. 25. You sharpen a pencil. A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical 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 9Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 10Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books