This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 5 Physical And Chemical Changes – Quiz 33 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 5 Physical And Chemical Changes Quiz 33 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The reason for a physical change to be named as such is that the: A) Change occurs only in physical properties. B) Transfer of energy takes place. C) Is a reversible change. D) All of the above. Show Answer Correct Answer: A) Change occurs only in physical properties. 2. The statue of liberty turning green is an example of a ..... A) Physical change. B) Painting. C) Chemical change. D) A statute become old. Show Answer Correct Answer: C) Chemical change. 3. Adding heat causes the molecules of water to move slower and closer together, resulting in a change of state. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Which of the following is incorrect for a chemical reaction? A) Heat may be given out but never absorbed. B) Sound may be produced. C) A color change may take place. D) A gas may be evolved. Show Answer Correct Answer: A) Heat may be given out but never absorbed. 5. An example of chemical and irreversible change is A) Cutting a log of wood. B) Jumping on the sofa. C) Baking of cupcakes. D) Shredding of paper. Show Answer Correct Answer: C) Baking of cupcakes. 6. A physical change (a) A) A. changes the physical properties of. B) Creates a new substance and cannot. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. changes the physical properties of. 7. Blue Color:Chemical or Physical Property A) Chemical Property. B) Physical Property. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical Property. 8. What type of change involves a reaction that forms new and different substances? A) Physical change. B) Chemical change. C) Mechanical change. D) Electrical change. Show Answer Correct Answer: B) Chemical change. 9. Light used to produce food in plants A) Chemical Change. B) Physical Change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical Change. 10. What type of change can be easily reversed? A) Chemical change. B) Physical change. C) Both chemical and physical changes. D) Neither physical or chemical changes. Show Answer Correct Answer: B) Physical change. 11. Baking a cake is an example of a chemical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. What do we call the molecules that are present at the end of a chemical reaction? A) Reactants. B) Products. C) Ingredients. D) Atoms. Show Answer Correct Answer: B) Products. 13. Why does a chemical change occur when iron rusts? A) The composition of the iron is altered, resulting in the formation of a new substance. B) The color of the iron changes, indicating a chemical change. C) The temperature of the iron increases, causing a chemical reaction. D) The weight of the iron decreases, showing a chemical reaction. Show Answer Correct Answer: A) The composition of the iron is altered, resulting in the formation of a new substance. 14. Which action would be a chemical change? A) Freezing water. B) Tearing paper. C) Cleaning pennies. D) Melting chocolate. Show Answer Correct Answer: C) Cleaning pennies. 15. Which of the following tells you that a chemical change may have occurred? A) Change Shape. B) Melting. C) Vaporizing. D) Change in color. Show Answer Correct Answer: D) Change in color. 16. Ice cream freezing A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 17. Chemical or Physical change?Sharpening a pencil A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical. 18. Properties like size, shape, colour, state of a substance are A) Chemical properties. B) Mental properties. C) Physico-chemical properties. D) Physical properties. Show Answer Correct Answer: D) Physical properties. 19. Jace measures 20 grams of water in a pan and then freezes it. A day later he takes the ice cubes out of the pan and notices it is larger than before. What will it weigh? A) 40 grams. B) 30 grams. C) 20 grams. D) 10 grams. Show Answer Correct Answer: C) 20 grams. 20. Jack has a rock. The rock has a mass of 14g and a volume of 2cm$^{3}$. What is the density of the rock? A) 7 mL. B) 7 g/cm$^{3}$. C) 28 g/cm$^{3}$. D) 1/7 g/cm$^{3}$. Show Answer Correct Answer: B) 7 g/cm$^{3}$. 21. Which one is a chemical property? A) Odor. B) Combustibility. C) Solubility. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. ..... begins and end with the same substance A) Physical change. B) Chemical change. C) All the above. D) None of the above. Show Answer Correct Answer: A) Physical change. 23. What happens when the food goes to the small intestine? A) Nutrients gets into the blood. B) The food keeps on going. C) Nothing. D) None of the above. Show Answer Correct Answer: A) Nutrients gets into the blood. 24. Chemical or Physical change?Rust forming on a car A) Chemical. B) Physical. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical. 25. ..... is the amount of space that an object takes up. A) Volume. B) Space. C) Room. D) Density. Show Answer Correct Answer: A) Volume. ← 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