3rd year High School science was Honors Chemistry for me. I had an overbearing teacher, but she was good if you were one of her favorites. Which I was.
I got to learn about Thermite, and Dihydrogen Sulfate. It really started me in terms of my curiosity about chemistry. Now I know all sorts of interesting facts about household chemicals and personal pharmacology.
Then in 12th year science, I was in Honors Physics. We built trebuchet's, and race tracks, and designed structures to cradle eggs while we threw them off the roof of the 3 story school. I loved science in High School, I only wish molecular biology at MIT was as interesting.
Enjoy High School while you're there, college is tons more work, and unless you're lucky and have a class full of cool people it's a lot more boring.