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6th Class Science Changes Around us Question Bank Changes Around us

  • question_answer
    DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 5 Ravi and Tina were working on a project based on' changes around us?, for which they were observing different changes occurring in their daily life. They went to kitchen where they saw there mother was cooking food on LPG stove. Ravi said that burning of LPG in LPG stove involves chemical change. But Tina argued that both physical and chemical changes are involved this process. Which one of the following examples in volves both chemical and physical changes?

    A) Cutting of wood

    B) Melting of ice

    C) Burning of a candle

    D) Burning of paper

    Correct Answer: C

    Solution :

        During burning of a candle melting of wax takes place that is a physical change. But it also results in formation of water vapours and carbon dioxide which is a chemical change.


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