<p>You have no business trying to find your son’s major for him- that is his job (nice to be helpful but remember to back off and let him have the fun of being the expert). That said, it doesn’t matter what he proposes as his major when entering college as many, if not most, entering college freshmen will be undecided or change their major. You can educate yourself by reading the college major info from schools you think may be of interest. Often the departments will explain themselves and give examples of where grads end up.</p>
<p>Regardless of the math/science major he ends up in he is likely to start with the same courses. There is plenty of time for him to explore majors at his college. He will have a wealth of material in the college majors descriptions at the schools he considers. It sounds like he is more interested in the math/comp sci/physics type sciences and not the chemistry/biology ones. He will take intro level courses in those subjects at his college for a major in any science and engineering and his major will emerge based on his experiences. He will learn about many possibilities once he is at his school. Don’t worry prematurely- he has plenty of time to narrow his focus once he is actually away at his college.</p>