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

Respiration in plants Whiteboard presentation Play

Resting and action potentials of a neurone Student activity Play

Role of anions in plant cells Slideshow Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as anions Student activity 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

Silver nitrate Slideshow Play

Soil Student activity Play

Soil as a source of minerals Student activity Play

Solubility Student activity Play

Solubility curves Whiteboard exercise Play

Solubility curves Student activity Play

Solubility of salts Student activity Play

Sorting metals by their reactivity with oxygen Whiteboard exercise Play

Specific gravity Student activity Play