Virtual lab

Experiments you can watch happen

Three classic experiments — animated, bilingual and safe. Run each one, read the equation, and take the exam tie-in with you.

Sodium — skates around, melts into a shiny ball, may end in a small flame.

$\mathrm{2\,Na}$ + $\mathrm{2\,H_{2}O}$ → $\mathrm{2\,NaOH}$ + $\mathrm{H_{2}}$

Going down group 1 the outer electron sits further away and is lost more easily, so reactivity climbs from lithium to cesium — the trend examiners never tire of.

Full Sodium page →

A word on real labs

These animations show what happens — but the alkali-metal demo is a teacher-only experiment (safety glasses, screen, tweezers, small pieces only). Never try experiment 1 at home or school by yourself.