Asking about a summer job?

Im fifteen, gonna be sixteen soon, don't plan on working this summer but would like to take a 'learning' roll with a company I plan on working with after collage. Most companies wont allow that I guess but I'm gonna try anyway, and I plan on going into a science field, my mom also did this but she is an adult, so I don't know if I would be allowed to have any kind of role in this company. I'm asking exactly how, if I can, and what should I ask this company for?