They may not be as dramatic as the real thing, but online video and descriptions of lecture demonstrations involving combustion and other chemical and physical effects still fascinate. The Chemistry Learning Center at the University of Illinois offers tantalizing glimpses of methanol combustion, electrolysis of water, hydrogen ignition, the effect of liquid nitrogen on a rose, an ammonium dichromate volcano, and more.

Go to: http://www.chem.uiuc.edu/clcwebsite/demos.html