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9th Class Science Matter in Our Surroundings Question Bank Matter in our Surroundings

  • question_answer
    Three containers \[X,\,\,Y\] and \[Z\] as shown below were filled with water and then left near an open window. The purpose was to find out whether the exposed surface area of the water affects the rate of evaporation of water. Why was the experiment NOT a fair one?

    A)  The exposed surface areas were different.

    B)  Different types of containers were used.

    C)  The amount of water in the containers was different.  

    D)  The containers were not covered.

    Correct Answer: C

    Solution :

     The experiment was not a fair one as the amount of water taken in the four containers was different.


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