Built for curious minds
Science makes sense when you can see it move.
Explore 26 interactive Physics, Chemistry and Biology simulations from upper primary to GCSE, IGCSE, A level and IB. Change the variables, test your predictions and learn by doing.
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11 simulations
Forces, energy, waves, electricity and matter.
8 simulations
Particles, reactions, analysis and energetics.
7 simulations
Cells, organisms, genetics and life processes.
Simulation library
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Every simulation includes live controls, visual feedback and concise curriculum-aligned explanations.
Atomic Structure
Build atoms and explore electron shells, subatomic particles, ions and isotopes.
Chromatography
Separate mixtures, watch pigments travel and calculate Rf values from your results.
Diffusion
See particles move down a concentration gradient and test what changes the rate.
Electrical Circuits
Build series and parallel circuits, then measure voltage, current and resistance.
Electrolysis
Pass current through ionic substances and see products form at each electrode.
Energy Profiles
Compare reaction profiles and visualise activation energy and catalysts.
Enzyme Kinetics
Investigate how temperature, pH and substrate concentration affect enzyme activity.
Gas Laws
Change temperature, volume and pressure while watching particle behaviour.
Heart & Circulation
Follow blood through the double circulatory system and explore the cardiac cycle.
Mendel's Genetics
Run monohybrid crosses and compare observed results with expected ratios.
Momentum & Collisions
Crash trolleys together and examine conservation of momentum and energy.
Osmosis
Watch water cross membranes and compare plant and animal cell responses.
Photosynthesis
Run a pondweed experiment and investigate three key limiting factors.
Radioactive Decay
Model random decay and compare experimental curves with half-life theory.
Reaction Rates
Test how concentration, temperature, surface area and catalysts change rate.
Refraction of Light
Bend light through different materials and verify Snell's law.
Titration
Perform acid–base titrations, identify endpoints and calculate concentrations.
Wave Properties
Adjust frequency, amplitude and wavelength and see the wave equation in action.
Forces & Motion
Balance driving force and friction, then connect the resultant force to acceleration.
Lenses & Images
Move an object around converging and diverging lenses and trace how images form.
Projectile Motion
Launch a projectile, compare ideal and drag models, and analyse its trajectory.
Electromagnetic Induction
Rotate a coil in a magnetic field and investigate magnetic flux and induced emf.
Chemical Equilibrium
Disturb a reversible reaction and watch concentrations approach a new equilibrium.
pH, Buffers & Titration Curves
Build a weak-acid titration curve and connect buffer action, pKa and equivalence.
Simple Harmonic Motion
Explore a mass–spring oscillator and see how mass, stiffness and damping change motion.
Population Models
Compare population growth with carrying capacity and sustainable harvesting.
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Built for revision. Useful in lessons.
Use SciSim for a quick concept check, a whole-class demonstration or an independent investigation. Every activity runs directly in a modern browser.
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