What could I do as a prospective Biochemistry/Life sciences major?

<p>Hi, I am a junior in high school at Hong Kong. I am currently looking for a good extracurricular activity which I could do to prove that I have a strong passion in the sciences. I am already teaching nutritional sciences over the summer; what else could I do that would show that I am interested in this area of study? Working at a lab won't work; nobody in HK will take a high-schooler into a lab for research!</p>