Chemistry Video?

u can use small and large beads of different colors like some for hydrogen some for oxygen.choose reaction of addition of any kind,you may call the beads the atoms in the reactants.show them while counting.then stick them together with glue to form molecules.in this way u can show law of conservation of m.u can show arrangements of particles in molecules.u can show expansion or contraction of particles comparing their volume before and after the reaction and link this to bond lengths,and what not.there are so many of them.just needs a bit of carefull thinking.and dont forget to mention my name in titles.