Reactivity of the alkali metals and their position in the periodic table Animation Play

Reactivity series Student activity Play

Recognising oxidising agents Student activity Play

Recognising reducing agents Student activity Play

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

Sentences about reactions of metals with acids Whiteboard exercise 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

Substances essential for the growth of plants Student activity Play

Testing for hydrogen Student activity Play

The beginnings of life Student activity Play

The costly process of oxidation Student activity Play

The diverse abundance of the elements Student activity Play