Maths is accepted as a science by most uni's, I guess it's considered a pure science but not a lab-based science, hence why people think of them as seperate?
Anyway Bio: 8/10 [the liver and pancreas A2 topics are so boring, so boring] Chem: I'll give it 5/10 because biochem is cool Physics: 7/10 [interesting but bloody difficult] Maths: 8/10