Chemistry

A genuine virtual bench: pick reagents, mix arbitrary volumes and concentrations, and get the result the chemistry actually implies rather than a scripted animation. Built for students who need to design an experiment, not follow one.

Type a molecule's name and get a 3D structure you can spin, plus the 2D skeletal formula beside it. Pulls from public chemical databases, so it handles far more than a textbook's worth of compounds.

Build molecules atom by atom, balance equations against a visual scale, and run titrations without breaking anything. The chemistry slice of the PhET collection.

The periodic table with every property layered over it live — electron shells, oxidation states, isotopes, orbitals. Drag the temperature slider and watch the elements change state across the whole table at once.