Sections of a cube Student activity Play

Sequence of bases in DNA Whiteboard exercise Play

Shampoo Animation Play

Similar prisms and pyramids Student activity Play

Similar pyramids Whiteboard exercise Play

Similar square-based pyramids Whiteboard exercise Play

Smog and acid rain Student activity Play

Soaps Student activity Play

Sodium hydroxide Animation Play

Solubility Student activity Play

Solubility Student activity Play

Solubility of hydroxides Whiteboard exercise Play

Solubility of silver halides in aqueous ammonia solution Animation Play

Solution of exponential equation Animation Play

Solving exponential equation Animation Play

Solving inequalities with increasing exponential functions Whiteboard exercise Play

sp3 Hybridisation Student activity Play

Spontaneous chemical modifications of nitrogenous bases Slideshow Play

Stability of the metal complexes with multidentate ligands Animation Play

Standard enthalpy of formation Student activity Play

Standard enthalpy of formation Animation Play

Standard enthalpy of formation of ammonia Animation Play

Standard entropy change Student activity Play

Statements about acids Whiteboard exercise Play

Stoichiometric coefficients and the relative volumes of gases Whiteboard exercise Play