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3rd Class Science Our Environment Question Bank Our Environment

  • question_answer
    Three identical containers, X, Y and Z were filled with the same amount of tap water, boiling water and ice respectively and were left in a room. Which of the following graphs shows the temperature change in each container after some time?

    A)  

    B)         

    C)         

    D)                     

    Correct Answer: B

    Solution :

    Tap water (X) will remain at the same temperature (room temperature). Boiling water (Y) will gradually lose heat and come to room temperature. Similarly, ice (Z) will melt by gaining heat (increasing temperature) and the resultant water will maintain its temperature to room temperature.


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