DS1 is obsessed with 'pure chemistry', and is fascinated by atoms and elements, and how they combine. I did get an A at O level a long time ago, but I don't think I deserved it, and can't remember anything about it.
He keeps asking questions like:
Why are Hydrogen and Oxygen both highly flammable and explosive?
And why is water not?
And what happens to the elements when something burns? Do they change chemically, or not?
Do you know of any textbooks or correspondence courses which might be suitable to satisfy his curiosity that are not too dry and turgid? (And enable me to stay one step ahead!)
He already has the sort of 'kitchen chemistry' books, and enjoys experimenting. But he seems to have a desire to learn the theory behind it, and as non-scientists we're both rather out of our depth