This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When you make a paper airplane from a sheet of paper, which physical property did you change A) Shape. B) Mass. C) Density. D) Color. Show Answer Correct Answer: A) Shape. 2. An element is A) Anything that takes up space. B) A substance made up of atoms of only one kind. C) Two or more different elements in exact proportion. D) None of the above. Show Answer Correct Answer: B) A substance made up of atoms of only one kind. 3. The amount of matter in an object A) Mass. B) Matter. C) Volume. D) Density. Show Answer Correct Answer: A) Mass. 4. When two liquids are mixed, the container feels cold to the touch. This is evidence of what? A) Physical change. B) Chemical change. C) State of matter change. D) No change. Show Answer Correct Answer: B) Chemical change. 5. If the chemical properties of a substance remain unchanged & the appearance or shape of an substance changes it is a ..... A) Chemical Change. B) Physical Change. C) Both a physical and chemical change. D) Neither a physical or chemical change. Show Answer Correct Answer: B) Physical Change. 6. What is the left part of a chemical equation called?H$_{2 + }$O $\rightarrow$ H$_{2}$O A) Reactants. B) Products. C) Yields. D) Chemical Equation. Show Answer Correct Answer: A) Reactants. 7. Water condensing A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 8. Density is a ..... A) Physical Property. B) Physical Change. C) Chemical Property. D) Chemical Change. Show Answer Correct Answer: A) Physical Property. 9. A solid is heated during an investigation causing it to melt. Which of the following most likely occurred? A) A chemical change. B) A compound was broken down. C) A physical change. D) A compound was formed. E) A new substance was formed. Show Answer Correct Answer: C) A physical change. 10. Chopping vegetables is a A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 11. Melting of wax is A) An irreversible physical change. B) An irreversible chemical change. C) A reversible chemical change. D) A reversible physical change. Show Answer Correct Answer: D) A reversible physical change. 12. When you eat food, you turn ..... into ..... A) Chemical energy, thermal energy. B) Thermal energy, potential energy. C) Kinetic energy, potential energy. D) Thermal energy, chemical energy. Show Answer Correct Answer: A) Chemical energy, thermal energy. 13. Production of heat or light is evidence that a chemical change may have occurred. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Sawing of wood is A) Physical change and reversible. B) Physical change and Irreversible. C) Chemical change and reversible. D) Chemical change and irreversible. Show Answer Correct Answer: B) Physical change and Irreversible. 15. Leo keeps a bowl of water in the freezer for a few hours to obtain substance X. He then leaves a second bowl of water on the table for an hour to obtain substance Y.Which statement correctly describes substances X and Y? A) X and Y both are solids. B) X and Y both are liquids. C) X is a liquid, and Y is a solid. D) X is a solid, and Y is a liquid. Show Answer Correct Answer: D) X is a solid, and Y is a liquid. 16. A physical property can be observed with your A) Eyes. B) Ears. C) Tastes. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. Is a change in temperature a chemical or physical change? A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 18. Thermal energy (heat) is released or absorbed during the reaction explains the ..... A) Change in color. B) Change in temperature. C) Change in gas. D) None of the above. Show Answer Correct Answer: B) Change in temperature. 19. Which of the following examples provides evidence of a PHYSICAL change? A) Wood is burned and releases ash and smoke. B) Iron rusts over time. C) When mixed, baking soda and vinegar form gas bubbles. D) A piece of paper changes shape when you rip it up. Show Answer Correct Answer: D) A piece of paper changes shape when you rip it up. 20. Which type of change is most often easily reversed? A) Chemical. B) Physical. C) Both a physical and chemical change. D) Neither a physical or chemical change. Show Answer Correct Answer: B) Physical. 21. What is the color change observed during a chemical change called? A) Color transformation. B) Chemical transformation. C) Color alteration. D) Chemical reaction. Show Answer Correct Answer: D) Chemical reaction. 22. Condition in which matter exists. A) States of Matter. B) Conditions of Matter. C) Matter. D) Mass. Show Answer Correct Answer: A) States of Matter. 23. Shredding paper is an example of a A) Chemical change. B) Physical change. C) Physical property. D) Chemical property. Show Answer Correct Answer: B) Physical change. 24. The smell of coffee is an example of a ..... A) Physical Property. B) Physical Change. C) Chemical Property. D) Chemical Change. Show Answer Correct Answer: A) Physical Property. 25. Ice melting is chemical A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. ← PreviousNext →Related QuizzesClass 7 Science Chapter 5 Physical And Chemical Changes Quiz 1Class 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 10Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books