Why does chocolate melt faster when crushed?

It is because when a chocolate is crushed, it will be smaller pieces which exerts a larger surface area. So that it can easily take in heat to give out reaction.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.