A constant source of voltage Student activity Play

A copper wire Animation Play

A family of transition metals Animation Play

Acids and alkalis Class activity Play

Adding copper to the alloy Whiteboard exercise Play

Adding gold to the alloy Whiteboard exercise Play

Alloys Class activity Play

Alloys Whiteboard presentation Play

Alloys of gold Animation Play

Aluminium alloys Student activity Play

Aluminium – lead – silver Whiteboard exercise Play

An application of a proportion Student activity Play

Appearance of copper sulphide Illustration Play

Application of transition elements and their compounds Slideshow Play

Applications of elements arising from their conductivities Slideshow Play

Arrangement of chemical elements in the periodic table Student activity Play

Arranging metals according to increasing reactivity Animation Play

Arranging metals according to increasing reactivity Student activity Play

Arranging metals according to their increasing reducing power Student activity Play

Arranging metals according to their increasing reducing power Simulation Play

Atomic mass of an element Student activity Play

Atomic mass of an element Whiteboard exercise Play

Atomic number Whiteboard exercise Play

Atomic number Student activity Play

Atomic radii Animation Play