Writing for Boys -- Take the Quiz!

I have a son who is learning to read. I want to write stories that will be of interest and value to him. I know the values that I believe are universal to sentient beings, but are there elements which are particularly attractive to the little boy goobers out there?

image: Pink Sherbert Photography
I have three of them, and I’ve gotta admit, they are vocal about what they like and don’t like. An awful lot of the time, that appears to be: cars, trains, robots, sharks, dinosaurs, soldiers, blowing...