A crown of gold mixed with silver Animation Play

A family of transition metals Animation Play

Acids and alkalis Class activity Play

Alloys of gold Animation Play

Alloys of precious metals Slideshow Play

Alloys of tin and precious metals Whiteboard exercise Play

Alloys of tin and precious metals Student activity Play

Aluminium – lead – silver Whiteboard exercise Play

Archimedes' Experiment Student activity Play

Arrangement of chemical elements in the periodic table Student activity Play

Atomic number Student activity Play

Atomic number Whiteboard exercise Play

Atoms Student activity Play

Atoms and elements Student activity Play

Avogadro's number Student activity Play

Behaviour of halide ions in the presence of silver nitrate(V) Animation Play

Calculating the isotopic composition of an element Student activity Play

Calculating the mass given the number of moles Student activity Play

Calculating the number of moles in a given mass Animation Play

Calculating the number of moles in a given mass (1) Student activity Play

Catalysts in industry Student activity Play

Chemical elements as groups of atoms Slideshow Play

Colours and physical states of metals Slideshow Play

Complex formation and the solubility of ionic compounds Student activity Play

Conducting electricity Student activity Play