"Science is not a subject". I more or less agree, but actually if you are an Y-sit at heart then Y is not a subject. My mother in law was a historian by qualification and inclination and saw history everywhere. I'm essentially a mathematician and see maths everywhere. I get the impression that is how you are with science. For each of us that topic is 'not a subject'.

But whether we like it or not, that's how these things are taught in schools and if it doesn't rock your particular kayak, a subject it what it is in your mind.