9th Class Science Sample Paper Sample Paper - 3 Term - 1

  • question_answer
      Take a test tube of good quality glass material and put a amount of water in it. Place a stop cork at the mouth of it. Now suspend the test tube horizontally by two strings or wires as shown in the figure. Heat the test tube with a burner until water vaporizes and the cork blows out. Write any two of your observations.


      (i) Water converts into steam. (ii) Steam exacts force on the cork and causes it to open.                                                                              (1 x 2)

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