Thanks for all the advice. Yes @VanCleefArpels absolutely, at this point it's definitely more the subject that I'm thinking about and want to get him thinking about, rather than the university itself. But as he will have to select A level options in a year, it doesn't feel too early to be thinking about that.
His strengths lie in maths and possibly physics. He's top set maths but is only doing combined sciences. He's much stronger in physics than biology for example. GCSE choices are Geography, History, Computer Science and PE.
What has prompted me thinking about this now is that a friend's son has just started university studying aeronautical engineering. I'm not at all saying that that is necessarily something that DS would be interested in, but it made me think that I need to broaden his horizon about the variety of course options that there are out that, ie wider than just the core subjects (eg maths) themselves.
@JessyCarr - thanks for the suggestion of the whatuni website, that's great
@TizerorFizz - I'd not heard of the Morrisby test, thank you
@Malbecfan - yes I believe that there is an Options evening in Year 11, but I just wanted to see what courses are out there between now and then. I've randomly picked a couple of universities and browsed their course options
Thanks for the tips everyone