for solids, you draw the particles packed together. for liquids, draw the particles spread out and for gas draw the particles completely spread out :S hope that helps :S
For a solid, draw compacted circles (atoms). For a liquid, draw a little separated circles with some lines to show they are moving For a gas, Draw few circles spread out and make long light lines to...
Well, for atoms to stop moving, the temperature would have to be at 0 K, aka absolute zero. However, that's theoretically impossible. Anyway, solid molecules barely move, "vibrating" against each...