The main purpose of the science is to help the persons to know this world and their environments. It mollifies the natural curiosity of human beings by giving them logical as well as appropriate answers. The main purpose of the science is to produce the valuable models of reality and people see more about the nature and its behavior as well. To get the best information related to this subject. Every student needs the expert’s guidance. That’s why we are presenting the different way to help the students in term .