Science is subject which has mainly four different branches i.e. Physics, Chemistry, Biology and environment (In higher education level it further divides in many other branches). In 9th & 10th class main focus of school syllabus revolves around these four branches. Student have to gain mastery in every topic to score good marks. If a student wants to choose technical or medical field after 10th, they have to be good in science or else the lack of knowledge will bring lots of diffuculties in 11th & 12th class.