A    Diffusion Definition -- The ANSWERS

         3.   This is a narrated video clip.  Please complete the following quote from this narration.  :)
     "All molecules are in constant _ motion _ unless at absolute zero.  (Real cold!)  The motion is
      _ random _ with molecules moving in straight liens until they encounter other molecules.  The net
      result of this process is _diffusion_ -- the movement of a substance where it is in _ high _
      concentration to an area where it is in _ low _ concentration. 

 

     [Possible use of video disk HRW 1A 20823-21828] 

 

             From the above animation(s), diffusion is the flow of substances (often molecules as shown
             as dots) from a region of   H I G H E R  (or G R E A T E R)   concentration to a region of   
             L O W E R    (or  L E S S E R )  concentration

  

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