Sources of heat Class activity Play

Sources of heat Class activity Play

Spectrum of electromagnetic waves Student activity Play

Speed Student activity Play

Speed Whiteboard exercise Play

Speed – a more difficult problem Student activity Play

Speeds of a boat and a river Animation Play

Sridhara's method of finding the roots of a quadratic equation Whiteboard exercise Play

Sridhara's method of finding the roots of a quadratic equation Student activity Play

Standard enthalpies of combustion for selected substances Chart Play

Standard enthalpy change Student activity Play

Standard enthalpy change Whiteboard exercise Play

Standard enthalpy of atomisation Student activity Play

Standard enthalpy of combustion Whiteboard exercise Play

Standard enthalpy of combustion Student activity Play

Standard enthalpy of formation Student activity Play

Standard enthalpy of formation Animation Play

Standard enthalpy of formation and combustion reactions Illustration Play

Standard enthalpy of formation for phosphorus trichloride Whiteboard exercise Play

Standard entropy change Student activity Play

Starch Slideshow Play

Statements about reduction of pollution Whiteboard exercise Play

Statistical problem specification Student activity Play

Symbols and formulae in chemical reactions Animation Play

Symmetry Whiteboard exercise Play