imagine a snowflake in your hand, and you look at it, and it's an incredibly complicated, beautiful object. But as you heat it up, it'll melt into a pool of water, and you would be able to see that, actually, it was just made of H20, water.
forestil dig et snefnug i din hånd; når du kigger på det er det et utrolig kompliceret, smukt objekt. Men når du varmer det op smelter det og bliver til en vandpyt og du vil se at det faktisk bare er lavet af H2O, vand.