A numerical measurement from the hands on experiment answers the question. Below are some suggestions for simple science projects. Remember that the focus of a science project is to learn about the scientific process. Understanding the rigorous process of scientific testing to obtain objective results is the ultimate goal. Consequently, simple project ideas are more appropriate than complex topics for students who are doing their first science project or who have not yet mastered the scientific process concept.
Simple topics allow students to focus on the process of solving problems with the scientific method.