Learning apps
A growing collection of small games, visual explorations, and interactive widgets for learning.
Ice to Steam
One flask of water — freeze it, boil it, and peek inside at the molecules.
pH Mixer
Drip acid or base and watch the pH shift.
Virtual Lab
Drop metals into water and watch reactions unfold.
Build an Atom
Build isotopes and ions from subatomic particles.
3D Molecules
Drag to rotate; toggle lone pairs; read the geometry name and bond angle right off the screen.
Equation Balancer
Balance chemical equations with integer coefficients.