A constant source of voltage Student activity Play

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

Acidic oxides Animation Play

Acids and alkalis Whiteboard presentation Play

Acids and alkalis Class activity Play

Across the periodic table Student activity Play

Alloys Whiteboard presentation Play

Alloys Class activity Play

Aluminium Slideshow Play

Aluminium Whiteboard presentation Play

Aluminium Class activity Play

Aluminium alloys Simulation Play

Aluminium alloys Student activity Play

Aluminium chloride Animation Play

Aluminium ores Whiteboard exercise Play

Aluminium ores Student activity Play

Aluminium oxide has many faces Slideshow Play

Aluminium – lead – silver Whiteboard exercise Play

Aluminium(III) salt in acidic, neutral and alkaline medium Whiteboard exercise Play

Amphoteric properties of aluminium oxide Animation Play

Applications of elements arising from their conductivities Slideshow Play

Arrangement of chemical elements in the periodic table Student activity Play

Atomic number Whiteboard exercise Play

Atomic number Student activity Play

Atomic radius Student activity Play