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 Student activity Play

Applications Student activity Play

Applications Student activity Play

Applications in physics Animation Play

Applications of aldehydes and ketones Animation Play

Applications of aldehydes and ketones Student activity Play

Applications of argon Slideshow Play

Applications of arithmetic progressions Student activity Play

Applications of arithmetic progressions Whiteboard exercise Play

Applications of chlorine Illustration Play

Applications of decreased pressure Simulation Play