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3rd Class Science Our Environment Question Bank Our Environment

  • question_answer
    Sheetal has taken an empty bottle and Balloon fixed a deflated balloon on its mouth. She placed the bottle in a container filled with hot water. After some time, the balloon gets inflated as shown. What could be the most appropriate reason for this?

    A)  Air when gets heated becomes heavier

    B)         Air when gets heated becomes lighter and settles down.

    C)         Air when gets heated becomes heavier and settles down.

    D)         Air when gets heated becomes lighter and rises up.

    Correct Answer: D

    Solution :

    When Sheetal placed the bottle in a container filled with hot water, the heat of the water gets transferred to air in the bottle. On heating, the air gets lighter and rises up to inflate the balloon.


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