On the bench · not built yet

pH Detective

Identify household mystery liquids with indicators and pH probes; neutralize a spill safely.

Nearby on the shelf

Spin a 3D atom, light up its emission spectrum and wander the whole periodic table. No quiz, just curiosity.

Card game where atoms bond ionically or covalently; intermolecular forces decide which substances boil first.

Balance equations by adding molecules on both sides; atoms on the scale must match.