Reaction of iron with sulphur Animation Play

Reaction of the product from dissolving sulphur dioxide in water Illustration Play

Reactions between metal halides and concentrated sulphuric acid Student activity Play

Reactions between metal halides and sulphuric acid Animation Play

Reactions occurring on the surface of a solid catalyst Student activity Play

Reagents, reactants and products Student activity Play

Reducing pollution from combustion Student activity Play

Reducing pollution from combustion Simulation Play

Reducing the sulphur dioxide pollution Animation Play

Regulation of carbon dioxide concentration by plants Student activity Play

Regulation of carbon dioxide concentration by plants Simulation Play

Rhombic sulphur (alpha-sulphur) Illustration Play

Rocks originating from magma Animation Play

Role of anions in plant cells Slideshow Play

Role of macro-elements absorbed as anions Whiteboard exercise Play

Role of macro-elements absorbed as anions Student activity Play

Separating mixtures Student activity Play

Separating sulphur and water Animation Play

Silicon, phosphorus and sulphur chlorides Animation Play

Smog Animation Play

Smog and acid rain Student activity Play

Smog and acid rain Whiteboard exercise Play

Sodium sulphide Animation Play

Sources of atmospheric sulphur dioxide Slideshow Play

Standard enthalpies of combustion for selected substances Chart Play