[Conan had been slowly getting used to the idea of other, very different, worlds. That still makes him stare for a moment in shock. ]

Ah, they're fields of study where I come from. Chemistry is a branch of physical science that studies the composition, structure and properties of matter. Forensics is the application of science to criminal and civil laws. Someone who studies forensics collects, preserves and analyzes scientific evidence in aid of investigations.