STEM stands for Science, Technology, Engineering and Math. Most careers and real-world problems are multi-disciplinary.
Sometimes when people think about STEM, the first thing that comes to mind is building bridges, whether it's students working with popsicle sticks, or engineers in hard hats working with steel beams. While building a bridge is a STEM activity, you may be surprised to discover just how many different STEM activities and careers there are out in the world that don't have anything to do with bridges! For example, here is a short list of STEM-related careers:
Veterinarian * Forester * Architect * Graphic Designer * Investment Banker * Cryptographer * Physician * Pastry Chef * Zookeeper * Massage Therapist * Webmaster * Video Game Designer * Firefighter * Auto Mechanic * Wind Turbine Service Technician * NOAA Research Vessel Crewmember
To see more examples, download a llst of STEM Careers
Sometimes, university departments or individual researchers get emails from young students (or their parents) who are looking for answers to questions for school projects. Sometimes, interviewing an expert is part of an assignment for school. The article: "So you need questions answered about space" from The Planetary Society has some great tips and suggestions for how and when to contact researchers for help.