not sure where it falls, but chemist would have to be it...

well i don't consider it science really, but my absolute fave is astronomy (personally i think it's closer to geography then science)

but yeah, the idea of mixing this and that and making a new substance amazes me... the fact that hydrogen and oxygen (gasses) mix and make water is amazing.. the fact you can make explosives from everyday household items also fascinates me (lol that sounds kinda terrorist-ish.. i just love explosions.. ain't got 'em in awhile, but i use to take blackcats durring firework season and create huge ass 'bombs' the size of a keyboard or bigger, connecting all the fuses so they go off at the same time, instead of succesively down that roll)