More complex examples in factorising by completing the square Student activity Play

More complex examples in factorising by completing the square Whiteboard exercise Play

More complex problems involving direct proportionality Whiteboard exercise Play

More complex problems involving direct proportionality Student activity Play

More difficult example Whiteboard exercise Play

More examples in factorising Whiteboard exercise Play

Mycorrhiza – an example of mutualism Slideshow Play

Naming of complex esters Whiteboard exercise Play

Nature of co-ordinate bonding Animation Play

Notation and energy diagram Animation Play

Octahedral ammine-metal complexes Animation Play

Oxidation of nitrogen monoxide by ozone Animation Play

Phenolphthalein as an example of an indicator Whiteboard exercise Play

Phenolphthalein as an example of an indicator Student activity Play

Photography Animation Play

Platinum anti-cancer drugs Animation Play

Polysynaptic reflex arcs Student activity Play

Polysynaptic reflex arcs Whiteboard exercise Play

Population and sample Student activity Play

Potential energy diagram for the reaction Animation Play

Potential energy diagrams for chemical reactions Student activity Play

Power in nature Illustration Play

Power in nature and technology Student activity Play

Power in technology Illustration Play

Proteins Class activity Play