Did you know water can explode?

It will if you add certain alkali metals to it, as this Brainiac video proves by blowing up a bathtub.



The Brainiac team uses rubidium and caesium for their biggest explosions, both of which react violently when placed in cold water. Caesium is particularly nasty. Don't try this at home, in other words.

tags: science, chemistry, rubidium, caesium, water, explosion