What happens when burning magnesium is dunked in water? We filmed it with the slow motion camera. Here is the magnesium in CO2 video mentioned: http://youtu.be/0dSMzg0UPPo Magnesium: http://youtu.be/FKkWdizutxI More slow motion: http://bit.ly/chemslomo More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://bit.ly/NottChem Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Sound effects: Alan Stewart - http://www.youtube.com/AlanKey86 A run-down of Brady's channels: http://bit.ly/bradychannels