This activity presents a structured exploration of the fundamental principles of fluid physics through computational modeling tools. Using Python scripts, two representative scenarios were developed and simulated to provide both an intuitive and quantitative understanding of the concept of density and its effects on the behavior of matter. The activity was programmed and carried out by a lower secondary school student, as part of a presentation for a job shadowing experience involving Spanish teachers visiting our highly digital school.

The Egg Enigma
The first scenario examines the phenomenon of buoyancy through the controlled variation of water salinity. The numerical model simulates the increase in fluid density as a function of salt concentration, allowing observation of the evolution of the buoyant force exerted on the egg. The simulation highlights the gradual transition from sinking, typical of fresh water, to a state of equilibrium and eventual floating in salt water, offering a dynamic and visual representation of the physical process.

The Density Tower
The second scenario focuses on the stratification of liquids with different densities. Through graphical visualization, the software demonstrates how mass and volume combine to determine the density of each substance and, consequently, their arrangement within a hydrostatic column. The model illustrates the formation of distinct and stable layers, in which each liquid floats on top of a denser one without mixing, clearly demonstrating the principles of equilibrium and separation in multiphase systems.

Overall, the activity integrates theory and simulation, showing how the Python programming language can be effectively used to translate abstract physical concepts into interactive and visual experiences, fostering a deeper and more applied understanding of natural phenomena.

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