On the bench · not built yet

Particle Party

Heat and cool particles and watch them shift between solid, liquid and gas; the temperature graph explains the plateaus.

Nearby on the shelf

Snap atoms into molecules (water, oxygen, methane) and see why some combinations are stable.

Run kitchen reactions (baking soda and vinegar, rusting); count atoms before and after to see mass is conserved.

Run a leaf as a factory: take in light, water and CO2, produce sugar and oxygen, then spend sugar to grow.