Colleges and professional schools want candidates with a well-rounded resume. This means that as students, you have to balance demanding coursework with sports, internships, volunteer service, and most importantly, also find down time to enjoy with friends and family!
Efficient study techniques will help you juggle all this quite well.
Don't record lectures to spend extra hours listening to the same lecture later. Save study time outside of class and learn within class time. Take good notes during lecture! Note topics the instructor spends time on, important keywords, terminology.
When given an assignment, complete it in advance and run it by the instructor a few days before it's due. This will ensure full credit because his feedback will tell you exactly what he wants out of the assignment. You're going to do the assignment anyways, just plan ahead and make time for it early on. Do not procrastinate...
Chemistry, in my opinion, is the most widely applied subject in the educational system. You can apply chemistry when you're cooking, cleaning, filling up your car, brewing beer or wine, welding, dating (carbon and speed dating), and thousands of industrial processes. I once heard from one of my chemistry professors, Dr. Chad Morris, "Chemistry is applied physics, and physics is applied math." Therefore physics, chemistry, and math all work in harmony.
You probably apply chemistry every day and don't realize it. When you make coffee in the morning, ever wondered about the chemistry involved in making a cup of joe? You have to first grind the roasted coffee beans to expose the caffeine and flavor compounds housed within the beans. You then have to filter hot water through the grinds to extract the much needed caffeine and flavors. Water works as a solvent to dissolve the polar caffeine and flavor molecules which pass through the coffee filter and into your carafe...