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Simulation Lab

Change something. See what happens.

Every simulation follows the same cycle: observe it, change the variables, predict what will happen, run the experiment, then read the explanation.

AllPhysicsChemistryBiologyICTMathematics
Chemistry

States of matter

Heat and cool a substance and watch the particles change arrangement, separation and motion in real time.

  • Particle arrangement
  • Changes of state
  • Temperature and kinetic energy
1.1 Solids, liquids and gases
Chemistry

Diffusion tube

Recreate the ammonia and hydrogen chloride experiment and predict where the white ring will form.

  • Diffusion
  • Relative molecular mass and speed
  • Random particle motion
1.2 Diffusion
Chemistry

Electron shells

Build any of the first 20 atoms and see its electronic configuration, group and period appear.

  • Electronic configuration
  • Group and period
  • Shell capacities 2, 8, 8, 2
2.2 Atomic structure and the Periodic Table
Chemistry

3D molecule viewer

Rotate common IGCSE molecules in three dimensions and count the shared electron pairs in each bond.

  • Covalent bonding
  • Molecular shape
  • Shared electron pairs
2.5 Simple molecules and covalent bonds
Chemistry

Electrolysis cell

Choose an electrolyte and watch the ions migrate, then check the products predicted at each electrode.

  • Ion migration
  • Anode and cathode products
  • Half equations
4.1 Electrolysis
Chemistry

Rate of reaction lab

Change concentration, temperature and surface area, then compare the gas-volume curves side by side.

  • Collision theory
  • Factors affecting rate
  • Interpreting rate graphs
6.2 Rate of reaction
Chemistry

Titration and pH

Add alkali to acid drop by drop and watch the pH curve and indicator colour change.

  • Neutralisation
  • pH scale
  • Titration curves
7.1 The characteristic properties of acids and bases

Planned

These are mapped to the syllabus and listed here for transparency, but the interactive versions have not been built yet. They are not clickable, because a button that does nothing is worse than an honest gap.
ChemistryPlanned

Ionic bonding

Transfer electrons between a metal and a non-metal atom and watch the ions and lattice form.