I'm taking chemistry next year. Which tecnically is a AP class at my school. Chem is harder than Bio, but all the smart people go to Bio. I think Bio is for cigarettes. stuff I don't give 2 stuffs about compared to the basics of science, elements and chemical reactions. We do some legitament stuff in Chem. Labs that we change the color of pennies using certain chemicals, making a solution crystalize to the magnate as you drag it over the glass about 2 inches from the solution. stuffs dope.