Ability to react with metal salts Animation Play

Abundance of chemical elements in nature Student activity Play

Abundance of the elements in the crust and in the whole Earth Animation Play

Acids and alkalis Class activity Play

Alkaline earth metals Slideshow Play

Alkaline earth metals Student activity Play

Alkalinity of hydroxides Animation Play

Ammonia – a weak base Animation Play

Amphoteric metal hydroxides Animation Play

Analysis of the products of total combustion Slideshow Play

Application of calcium hydroxide Animation Play

Application of magnesium hydroxide Slideshow Play

Application of potassium hydroxide Slideshow Play

Application of sodium hydroxide Slideshow Play

Applications of sodium hydroxide Illustration Play

Aqueous solutions of bases Whiteboard exercise Play

Atomic number Student activity Play

Atomic number Whiteboard exercise Play

Autoionisation of water Student activity Play

Balancing chemical equations and stoichiometry Animation Play

Base dissociation constant Kb (1) Student activity Play

Bases (1) Student activity Play

Bases (2) Student activity Play

Bones and joints rebuilding Animation Play

Calcium carbonate Slideshow Play