Girls outperforming boys starts way before school, but it becomes slightly more obvious when they reach their first steps in education, and then through to University. This is backed by countless studies and statistics.
I remember being back at school and having to read Romeo & Juliet, Pygmalion, Of Mice and Men, Death of a Salesman, Les Misérables (I went to a French school), l'Étranger, Cyrano de Bergerac and My Fair Lady amongst countless others... Although I thoroughly enjoyed the books/plays, I couldn't handle the analysis, re-reading, re-re-reading. It was torture to me and I couldn't hold concentration in many of my English and French classes. I did very well when it came to the sciences because it was, for a big part, practical, and that's the biggest difference between us boys and you girls.
Girls love to read, love to organise themselves, love homework, love essays, etc... whereas us guys wish we could just do things, in the practical sense. We want to blow **** up with in Chemistry, dissect frogs and goat brains in Biology, find out why things fall at certain times in Physics...
It's so ****ing obvious why more girls are attending University, yet some people still say otherwise.
Why are guys better in Sciences? Why are girls better at writing essays? Ask yourselves that!