9th Class Science Sample Paper Sample Paper - 1 Term - 1

  • question_answer (i) What happens to the temperature of water, when it boils? (ii) At 0°C or 273 K, what is the physical state of water?  


    (i) The temperature of water remains the same, because it remains constant at boiling point.                                     (1) (ii) Both solid and liquid, because both solid and liquid coexist at melting point.                                                                  (1)  


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