A sulphate salt with a hydrophobic alkyl chain Animation Play

A sulphonate salt with a hydrophobic hydrocarbon chain Animation Play

Acid reactions Class activity Play

Acids and alkalis in everyday use Whiteboard exercise Play

Acids and alkalis in everyday use Student activity Play

Application of glycerol Illustration Play

Biological treatment of wastewater Student activity Play

Biological treatment of wastewater Slideshow Play

Cell disruption Animation Play

Chemical pollution – nutrients Student activity Play

Classifying substances Student activity Play

Cleansing action of soaps and detergents Student activity Play

Cleansing action of soaps and detergents Animation Play

Colloids. Washing in water Whiteboard presentation Play

Colloids. Washing in water Class activity Play

Disinfection Animation Play

Do households affect ecosystems? Student activity Play

Do households affect ecosystems? Whiteboard exercise Play

Eco-friendly washing powders? Slideshow Play

Eutrophication of water Student activity Play

Gases and acids Illustration Play

Hardness index of water Animation Play

How households affect ecosystems Animation Play

Introduction to genetic engineering – DNA isolation Student activity Play

Natural water (2) Student activity Play