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

  • question_answer
      Fill in the Blanks (i) Evaporation of a liquid at room temperature leads to a ......... effect. (ii) At room temperature, the forces of attraction between the particles of solid substances are ......... than those which exist in the gaseous state. (iii) The arrangement of particles is less ordered in the ......... state. However there is no order in the ......... state. (iv) ............ is the change of gaseous state directly to solid state without going through the ............ state. (v) The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called .........  

    Answer:

                      (i) cooling (ii) stronger, (iii) liquid, gaseous (iv) sublimation, liquid, (v) evaporation (1x5=5)


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