Demonstrate the kinetic gas theory with this apparatus Small electric motor vibrates platform so the metal balls vibrate violently Supplied with balls and 2 floats CE approved Kinetic Gas Theory Model, Vibration Apparatus (1) Apparatus with accessories Kinetic Gas Theory Model, Vibration Apparatus (1) Apparatus with accessories To study motion and behavior of molecules in gases. An electric motor running at 4 - 12 V DC vibrates small platform inside transparent tube so that set of many small steel ball is vibrated violently inside tube. An increase in the violence of vibration simulates an increase in gas temperature and an increase in the weight of the 'float' simulates an increase in gas pressure. Supplied with balls and 2 'floats'.