Salts of weak acids and weak bases Student activity Play

Seawater Slideshow Play

Sedimentary rocks Student activity Play

Separation of amino acids Animation Play

Sequence of amino acids Animation Play

Shampoo Animation Play

Smelting and electrolysis Animation Play

Smog and acid rain Student activity Play

Smog and acid rain Whiteboard exercise Play

Sodium carbonate as a standard Animation Play

Soil fertility; fertilization and types of fertilizers Student activity Play

Solubility in water Animation Play

Some other information about acids Illustration Play

Sorting the rocks Whiteboard exercise Play

Sour taste Animation Play

Sources of fats Slideshow Play

Spectra of compounds with a carbonyl group Student activity Play

Standard hydrogen half-cell Animation Play

Standard hydrogen half-cell Student activity Play

Standard reduction potentials Student activity Play

Standard solutions Student activity Play

Standardising of hydrochloric acid solution Animation Play

Statements about acid rain Whiteboard exercise Play

Statements about acids Whiteboard exercise Play

Statements about changing the pH of acid soils Whiteboard exercise Play