Solids, liquids and gases   
solids the particles
are held tightly and packed fairly close together - they are strongly attracted to each othero are in fixed positions but they do vibrate

liquids the particles
are fairly close together with some attraction between themare able to move around in all directions but movement is limited by attractions between particles

In gases the particles
have little attraction between themare free to move in all directions and collide with each other and with the walls of a container and are widely spaced out