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Particles of matter are at constant motion.
In case of solids, the particles vibrate at their own position.
In liquids and gases , the particles move from one place to another.
This can be seen in the following examples ;
- When food is being cooked in the kitchen, we can smell the food even from a distance This is because the food gases move from the kitchen to the rest of the home.
- On adding a few drops of ink (or Potassium Permanganate crystals) into water, it gets distributed slowly throughout the volume of the liquid as the particles move throughout the container the liquid is stored in.