This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 41 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an indicator of a chemical change? A) Change in shape. B) Change in color. C) Change in size. D) Change in state. Show Answer Correct Answer: B) Change in color. 2. A green powder is heated & a gas is given off while it turns to a black solid. This describes A) Physical Change. B) Chemical Change. C) Change in State. D) Change in Temperature. Show Answer Correct Answer: B) Chemical Change. 3. Which of these is an example of a new substance being formed? A) A nail rusting. B) A wall being painted. C) Water changing to steam. D) Paper being folded. Show Answer Correct Answer: A) A nail rusting. 4. Formation of manure from leaves is a physical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Most chemical changes cannot be reversed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. James has to provide an example of a physical change on his science test. Which of the following would be a correct response? A) An aluminum can being crushed. B) Making a camp fire. C) Baking a cake. D) Making pancakes on the stove. Show Answer Correct Answer: A) An aluminum can being crushed. 7. You are hungry and decide to make breakfast. You crack a raw egg into a frying pan. You cook your egg and eat it. The egg when through a ..... A) No change. B) Physical change. C) Chemical change. D) Some change. Show Answer Correct Answer: C) Chemical change. 8. What does melting point mean? A) The tempurture at which a substance changed from a solid to a liquid. B) The tempurture at which a liquid changes into a gas. C) The tempurture at which a liquid changes to a solid. D) None of the above. Show Answer Correct Answer: A) The tempurture at which a substance changed from a solid to a liquid. 9. In an exothermic reaction, energy is ..... A) Released. B) Absorbed. C) Stored. D) Doubled. Show Answer Correct Answer: A) Released. 10. Is glass breaking a chemical or phyiscal change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 11. Which is NOT an example of condensation? A) Dew is found on the grass on a summer morning. B) Drops of water form on a cold can of soda on a hot day. C) A bucket of water left uncovered eventually becomes empty. D) The walls of a bathroom are damp after someone takes a showers. Show Answer Correct Answer: C) A bucket of water left uncovered eventually becomes empty. 12. Which is NOT a physical property? A) Odor. B) Reacts with acid. C) Ability to conduct electric current. D) Hardness. Show Answer Correct Answer: B) Reacts with acid. 13. What happens to the weight of matter when it undergoes a physcial change? A) It stays the same. B) It increases. C) It decreases. D) None of the above. Show Answer Correct Answer: A) It stays the same. 14. Anna takes some apples and makes the changes as described in the list. 1. Cuts and apple into four pieces2. peels apple3.cooks an apple in the oven4. slices and apple and tops it with cool whipWhich process(es) will lead to a chemical change only? A) 1 only. B) 3 only. C) 2 and 4. D) 1 and 2. Show Answer Correct Answer: B) 3 only. 15. Which is the best example of a new substance forming? A) Lighting a match. B) Cutting a piece of paper. C) Popping a balloon. D) Hitting a nail with a hammer. Show Answer Correct Answer: A) Lighting a match. 16. What kind of properties result in the substance changing into a new substance? A) Liquid Properties. B) Physical Properties. C) Chemical Properties. D) Real Properties. Show Answer Correct Answer: C) Chemical Properties. 17. Is moldy cheese a chemical or physical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 18. Matter goes through a change resulting in a gas (smell). What type of change is most likely occurring? A) Chemical. B) Physical. C) Acids. D) Bases. Show Answer Correct Answer: A) Chemical. 19. What does the Law of Conservation of Matter refer to? A) Matter can not be created or destroyed. B) Matter can be created but not destroyed. C) Matter can be destroyed but not created. D) Matter is being lost everyday. Show Answer Correct Answer: A) Matter can not be created or destroyed. 20. Density A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 21. Which of the following things has matter? A) Basketball. B) The sun. C) You. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. What is the definition of mass? A) V=L X W X H. B) Person, place or thing. C) The amount of matter an object contains. D) A measure of the amount of space an object takes up. Show Answer Correct Answer: C) The amount of matter an object contains. 23. Which is an example of a physical property? A) Ability to react with acid. B) State of matter. C) Flammability. D) Ability to react with oxygen. Show Answer Correct Answer: B) State of matter. 24. In the laboratory, a blue liquid is mixed with a yellow liquid. What would be the best evidence that a chemical change took place as the liquids were mixed? A) The new liquid is green. B) The yellow liquid floats on top of the blue. C) The formation of a gas. D) No change in the temperature of the new solution. Show Answer Correct Answer: C) The formation of a gas. 25. When heat is added to an ice cube, it will change to a A) Liquid. B) Solid. C) Plasma. D) None of the above. Show Answer Correct Answer: A) Liquid. ← 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