Science has always been the most fascinating among all the streams and the most lucrative to study in, but it is not a stream that you can just study without any interest. The main subjects to study in science are Physics, Chemistry, Biology, Mathematics and C++ (depending upon the school).
To a Class X student the Science stream option gives an opportunity to pursue their future careers in Medical and Engineering related fields. The subjects include practical labs and theory which requires a lot of hard work from the students.
Further a student can select Medical and Non-Medical field, which is differentiated by Biology subject. For every medical student it is important to study Biology as a core subject and non-medical students must study Mathematics and Computers, along with Physics and Chemistry.