[Whoops, maybe she's from a place that isn't like Earth. Fantasy world? Alien planet? Galaxy far, far away?]

I have a science education. I earned a degree called a Master's degree. Master of Science. Two letters. MS.

[He's not going to be a jerk about her not getting it. Different universe, different cultural context.]

That's how I know what I'm doing - kind of. [It's not like any of this stuff is labeled in ways he entirely understands or at the exact concentrations/purity/etc. etc. he's used to using.] My degree is in chemical engineering and I rely on it a lot for my night job.

[His day jobs are garbage: a mix of freelance photography and science journalism, and low-paying consulting work. Sometimes odd jobs here and there. All his years as Spider-Man and the superheroism-fueled latenesses, absences - and resulting firings - have left his work history looking like Swiss cheese.]

[But he sure uses his education a lot as Spider-Man.]

That means I know the reactions that happen when you mix certain chemicals. The ways they react with each other and what gets produced after.