Sedimentary rocks Student activity Play

Smelting and electrolysis Animation Play

Sodium ions Animation Play

Soil as a source of minerals Student activity Play

Soil fertility; fertilization and types of fertilizers Student activity Play

Solution of hexaaquairon(III) ions Whiteboard exercise Play

Sorting the rocks Whiteboard exercise Play

Stability of fragmentation ions Student activity Play

Stability of fragmentation ions Whiteboard exercise Play

Strong and weak acids Student activity Play

Strong and weak bases Student activity Play

Structure and function of a capillary Slideshow Play

Structure of erythrocytes Animation Play

Synapses – functioning and importance of junctions between neurones Student activity Play

Synthesis of organic compounds in plants Student activity Play

Synthesis of organic compounds in plants Slideshow Play

Testing for ions Class activity Play

Testing for ions Whiteboard presentation Play

Tetrachlorometalate ions Animation Play

The beginnings of life Student activity Play

The chemical composition of plants Whiteboard exercise Play

The chemical composition of plants Student activity Play

The cytosol Student activity Play

The effects of osmosis on the rate of transpiration Student activity Play

The effects of osmosis on the rate of transpiration Simulation Play