Todae... Physics actually wasnt so boring after all.
Mr See(did I spell his name wrong?) showed us a video. The speaker was spoilt so he said that when there are explosions he will say 'Kaboom!' but he DIDNT.
Anyway, when you pour water on hot oil it will cause a huge fireball.
The hot oil evaporates very fast and when the water is poured on it the oil overflows and comes in contact with the stove flame. Then it will light up all the oil droplets(or vapour something) in the air then a huge FIREBALL.
And also you can use Dry ice to make a bomb. Really!
Fill a bottle with Dry ice and then cap it and run like a mile away. Then... KABOOM!
The dry ice will turn from solid immediately into gas(unlike water, it dose not turn to liquid first) and the gas state takes up more space then the solid state so the bottle just explodes.