The invention relates to the field of devices for demonstration experiments and laboratory work in physics in secondary schools. Device for demonstration experiments and laboratory work on physics comprises rack mounted a transparent, elastic, fluid-filled tube with open or closed ends and an air bubble has a rack having a groove width which is smaller than the tube diameter, for fixing the tube in a forward or in a curved and shelf positions for setting the paper strip. Training and systematic effect of the utility model is intended to simplify, the security of the experiment, does not require much time for preparation work for the experiments, the materials used allow easy transformation of forms. The time of the experiment is reduced, and the diversity of experiences and expanding the scope of their conduct: mechanics, geometrical optics, electrostatics and hydrostatics.
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