Our knowledge of the natural world and the process through which that knowledge is built Let us take a took at some important concept What is Science: Physics investigatory projects for class 12 carry 3 Marks in the Final Examination. Introduction to physics project for class 12 7 List of Product available to help you in class 12 physics project.5 How to write the class 12th physics project.4 Performing Physics Projects for Class 12.1 Introduction to physics project for class 12.