The quality of teaching physics in schools is crucial because it contributes not only to the understanding the basic natural phenomena that are important for all the natural sciences, but also gives student through a physical way of thinking the tools and skills that can be applied in every aspect of life. Teachers and experts in the world are constantly working to develop techniques and methods of teaching physics. The aim of the new Croatian national curriculum should be a transfer of the world's best experiences in all school subjects. Traditional forms of teaching, that are often heavy and obscure to sudents, are replaced (often up to 50% as in the Scandinavian countries) with various forms of project based learning that is based on research and individual approach. The main tool to change these concepts in physics is experiment. Physics is a natural science based on experiments. The experiment in physics teaching encourages creativity, develop critical thinking and reasoning. This work in the chosen topic of Bernoulli equation will show that simple experiments can be an interesting way to display important physical concepts. These examples may be part of a future catalog of physical experiments that can become with proper training and motivation of teachers, the backbone of modern physics teaching.