Physical and Chemical Changes Quiz for Class 7 Science
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Questions and Answers

Which of the following is an example of a physical change?

  • Melting of ice (correct)
  • Burning of wood
  • Rusting of iron
  • Cooking an egg

    • Which of the following is a chemical change?

  • Cutting a piece of wood
  • Freezing water into ice
  • Dissolving salt in water
  • Burning paper (correct)

    • What happens to the mass of a substance during a physical change?

  • It fluctuates
  • It decreases
  • It increases
  • It remains the same (correct)

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