All liquids and gases exhibit Brownian movement. That is the random movement of individual atoms/molecules in a liquid or gas. Any gas or liquid is an example; if you mean an example you can see you must make the atoms/molecules visible Place some finely ground silt (dirt) in a little water, stir it around, place a drop on a microscope slide and view the drop. You will see the individual dirt particles moving around. This is caused by the water molecules bumping into the silt particles and moving them around randomly.
