Sound travel in gases and vacuum Simulation Play

Spectral classes Chart Play

Spontaneity of the process Whiteboard exercise Play

Spontaneous and stimulated emission Student activity Play

Spontaneous changes Animation Play

Spontaneous changes and probability Student activity Play

Spontaneous changes and probability Whiteboard exercise Play

Standard enthalpy change Animation Play

Standard enthalpy change Whiteboard exercise Play

Standard enthalpy change Student activity Play

Standard enthalpy change for hydrogenation of ethene Animation Play

Standard entropy change Chart Play

Standard entropy change Student activity Play

Standard free energy change for neutralisation reaction Animation Play

Statements about dispersion of light Whiteboard exercise Play

Stellar radiation Simulation Play

Stellar radiation Student activity Play

Stellar radiation Animation Play

Stimuli and receptors Whiteboard exercise Play

Structure of halogen molecules Student activity Play

Sun Animation Play

Terminating and non-terminating decimals Student activity Play

Terminating and non-terminating decimals Student activity Play

Terminating and non-terminating decimals Whiteboard exercise Play

Terminating or non-terminating? Animation Play