Enzymes in the textile and chemical industry Whiteboard exercise Play

Enzymes – chemical regulators of reactions Student activity Play

Enzymes – chemical regulators of reactions Simulation Play

Essential and non essential elements Slideshow Play

Essential elements Whiteboard exercise Play

Essential elements – macro-elements; trace elements and ultra-trace elements Student activity Play

Examples of chemical reactions Whiteboard exercise Play

Examples of chemical reactions Slideshow Play

Examples of functions – a table Student activity Play

Examples of sets and their elements Animation Play

Examples of useful chemical reactions Slideshow Play

Extraction of aluminium Student activity Play

Factors affecting the chemical equilibrium Class activity Play

Factors affecting the chemical equilibrium Whiteboard presentation Play

Fast and slow reactions Student activity Play

Flame tests Student activity Play

Formation of bonds between elements Animation Play

Formulating a chemical equation Whiteboard exercise Play

Formulating a chemical equation Whiteboard exercise Play

Formulating a chemical equation (1) Student activity Play

Formulating a chemical equation (2) Student activity Play

Four useful chemical reactions Whiteboard exercise Play

Functions of the vascular elements of the liver Whiteboard exercise Play

Gases in a chemical laboratory Animation Play

Gases in a chemical laboratory Slideshow Play