The EducationUniverse

Home › Interactives › Earth & Space Sciences › Hydrostatic Equilibrium Simulator

Earth & Space Sciences · Stars & the Universe

Hydrostatic Equilibrium Simulator, Years 11–12

Students alter stellar parameters such as core temperature, fusion support and opacity and observe whether inward gravity and outward pressure remain balanced. It shows why stars are stable for most of their lives and what happens when that balance changes. The full interactive is available to licensed Education Universe users.

Years 11–12, UndergraduateExplorer

Try interactive

Learning outcomes

Teaching guidance

Ask students to sketch the forces acting on a layer of the star before running each change.

Use Hydrostatic Equilibrium Simulator with your class

Start a free 30-day trial with class codes and progress tracking, or talk to us about your school's licence.

Related interactives

Earth & Space Sciences · Years 9–11

Galaxy Classification

Students drag galaxies into the correct Hubble classification zone using visible structural clues, then use the feedback to connect galaxy morphology with stellar…

Earth & Space Sciences · Years 9–11

Galaxy Type Visualizer

Students compare three-dimensional representations of the major galaxy types and inspect how shape, stellar population, gas content and star-formation behaviour…

Earth & Space Sciences · Years 10–12, Undergraduate

HR Diagram Explorer

Students explore a star alongside its position on a Hertzsprung–Russell diagram, changing stellar mass and relating temperature, luminosity, radius and evolutionary…

Earth & Space Sciences · Years 11–12, Undergraduate

Nuclear Fusion Core Simulator

Students vary stellar-core temperature, density and hydrogen content and observe changes in proton–proton fusion rate, energy output and pressure support. The full…

Earth & Space Sciences · Years 10–12

Redshift Explorer

Students move a galaxy through cosmological distance, compare rest and observed spectral lines, calculate redshift from the wavelength shift and connect recession…

Earth & Space Sciences · Years 8–10

Solar Layers Explorer

Students explore the layered structure of the Sun and compare the physical conditions and roles of the core, radiative zone, convective zone, photosphere, chromosphere…

Hydrostatic Equilibrium Simulator is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.