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

  • question_answer
    Based on the flow chart given below, which of the following is correctly represented by P and Q?                

    A)
    P Q
    Boiling Evaporation
                   

    B)       
    P Q
    Evaporation Boiling
                   

    C)       
    P Q
    Boiling Condensation
                   

    D)       
    P Q
    Evaporation Condensation

    Correct Answer: A

    Solution :

                    When a substance absorbs heat or heated continuously, it starts boiling. It is a fast, man- made process. When a substance absorbs heat from the sun or surroundings of its own and changes from liquid to gaseous state, it is called evaporation. Evaporation of water is a slow, natural process.


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