Stability of the nuclei Class activity Play

Standard enthalpy change for hydrogenation of ethene Animation Play

Standard enthalpy change. Hess’s law Whiteboard presentation Play

Standard enthalpy change. Hess’s law Class activity Play

Standard enthalpy of atomisation Student activity Play

Standard enthalpy of atomisation of non-metals Animation Play

Standard enthalpy of combustion Student activity Play

Standard enthalpy of combustion Whiteboard exercise Play

Standard enthalpy of formation of ammonia Animation Play

Standard entropy values Animation Play

Standard free energy change for neutralisation reaction Animation Play

Standard reduction potentials Student activity Play

State of chemical equilibrium Animation Play

Statements about assimilation of food Whiteboard exercise Play

Statements about chemical reactions Whiteboard exercise Play

Statements about least useful chemical reactions Whiteboard exercise Play

Statements about the importance of chemical reactions Whiteboard exercise Play

Statements about types of chemical reactions Whiteboard exercise Play

Static equilibrium and dynamic equilibrium Audio text Play

Staying healthy Slideshow Play

Stefan-Boltzmann Law Whiteboard exercise Play

Stefan–Boltzmann Law Student activity Play

Stellar radiation Whiteboard exercise Play

Stellar radiation Student activity Play

Stomata Illustration Play