Keep it simple! Know your audience and speak in terms that they will understand.
Follow the four-step plan:
What the profession does.
How much the profession makes.
How much education is needed.
Which local schools offer the schooling needed.
Tell the students about the importance of experiencing these professions in order to help them decide if this is something that they would like to pursue.
Shadowing professionals at a hospital or doctor's office.
Volunteering during the summer at a hospital or doctor's office. Many hospitals allow volunteers and this is a great way to see if a career in this field is right for you. Example: UCLA Health Volunteers.