Properties of solids Student activity Play

Properties of solids: a microscopic view Animation Play

Quantities of essential elements in 1000 g of dry plant mass Illustration Play

Questions about the physical changes Whiteboard exercise Play

Refraction of light Student activity Play

Reversible and irreversible reactions Student activity Play

Reversible processes Whiteboard exercise Play

Sedimentary rocks. Part I Class activity Play

Sedimentary rocks. Part I Whiteboard presentation Play

Seeing other bodies in space Student activity Play

Solid Animation Play

Solid, liquid and gaseous states Student activity Play

Solid-liquid equilibrium Animation Play

Solid-liquid phase change Student activity Play

Solid-vapour equilibrium Whiteboard exercise Play

Solid-vapour equilibrium Student activity Play

Spontaneous changes and probability Student activity Play

Static friction causes motion Student activity Play

Structure and properties of water Student activity Play

Sublimation Animation Play

Sublimation and deposition Student activity Play

Sublimation and deposition Animation Play

The atypical behaviour of water during freezing Animation Play

The bleaching properties of chlorine Simulation Play

The Celsius scale Animation Play