Sodium Polyacrylate & Water Reaction = Artificial Snow
Burning Mercury Thiocyanate Reaction
Electrical Discharge Example
Ferrofluid in a Glass Bottle
Reaction Between Hydrogen Peroxide & Potassium Iodide
Mercury vs Aluminium
Flammable Gas Lit In a Glass Jar Experiment
Hand Grenade Fire Extinguisher
I am not a science student, however when I tell this to anybody it changes their perception. Trust me you will make other believe that you are smart Science student.
I know it may not last long if somebody ask a lot of questions. But you may give it a try cautiously to see the result. It will really thrill you.