Relationship between the group number and the number of valence electrons Animation Play

Replacing soil minerals Student activity Play

Resting and action potentials of a neurone Student activity Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play

s-block elements Animation Play

Salts in the human organism Illustration Play

Salts of s-block elements occurring in nature Slideshow Play

Seawater Slideshow Play

Selected physical properties of oxides Chart Play

Sentences about reactions of metals with acids Whiteboard exercise Play

Silicon and aluminium oxides Animation Play

Sodium, magnesium and aluminium oxides Animation Play

Soil Student activity Play

Soil as a source of minerals Student activity Play

Sorting metals by their reactivity with oxygen Whiteboard exercise Play

Specific gravity Student activity Play

Statements about extraction of metals Whiteboard exercise Play

Statements about gas pressure Whiteboard exercise Play

Structure of oxides Student activity Play

Substances essential for the growth of plants Student activity Play

Testing for hydrogen Student activity Play

The acidic properties of non-metal oxides Student activity Play

The action of sulphuric(VI) acid on copper(II) oxide Animation Play

The basic properties of metal oxides Student activity Play