A constant source of voltage Student activity Play

A family of transition metals Animation Play

Abundance of chemical elements in nature Student activity Play

Abundance of elements in nature Slideshow Play

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

Acids and alkalis Class activity Play

Adding copper to the alloy Whiteboard exercise Play

Adding gold to the alloy Whiteboard exercise Play

Air resistance Student activity Play

Alloying agents Slideshow Play

Alloys of gold Animation Play

Alloys of iron Slideshow Play

Alloys of tin and precious metals Student activity Play

Alloys of tin and precious metals Whiteboard exercise Play

Aluminium Class activity Play

Aluminium Whiteboard presentation Play

Aluminium alloys Simulation Play

Aluminium alloys Student activity Play

Aluminium oxide has many faces Slideshow Play

Amorphous solids Student activity Play

Appearance Student activity Play

Appearance Student activity Play

Appearance of non-metals Slideshow Play

Application of transition elements and their compounds Slideshow Play

Arrangement of chemical elements in the periodic table Student activity Play