Awesome Sodium and Water Slow Mo Explosion gif
Adam Rifkin stashed this in Science!
Sodium reacts violently to water.
4Na(s) + 4H2O(l) + O2(g) => 4NaOH(l/g) + 2H2(g) + O2(g) + heat => 4NaOH(l/g) + H2O(g) + more heat
Reminds me of the kid in our high school that put a piece of magnesium in his pocket and started sweating and got a 3rd degree burn. You think it'd be an urban legend....
You'd think kids would know better!