Cellular catalysts Student activity Play

CFCs and ozone layer depletion Student activity Play

CFCs deplete ozone in stratosphere Animation Play

Changes in the ionisation energy down the group Animation Play

Characteristics of positive and negative feedback Whiteboard exercise Play

Charged particles in electric and magnetic fields Student activity Play

Charging by contact Whiteboard exercise Play

Charging by contact Student activity Play

Charging by induction Whiteboard exercise Play

Charging by induction Student activity Play

Chemical digestion – the role of enzymes Student activity Play

Combustion of hydrocarbons as a source of energy Student activity Play

Condensation polymerisation (1) Student activity Play

Conductors Whiteboard exercise Play

Conductors Student activity Play

Construction of a circuit Student activity Play

Construction of a circuit – average Simulation Play

Construction of a circuit – difficult Simulation Play

Construction of a circuit – easy Simulation Play

Cooper–zinc cell Animation Play

Covalent bonding (2) Student activity Play

Covalent bonding and dissociation Animation Play

Cracking experiment in the laboratory Animation Play

Cracking process Student activity Play

Decomposition of hydrogen peroxide Animation Play