Ability to react with metals Animation Play

About cells Student activity Play

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

Acids (2) Student activity Play

Acids and alkalis Class activity Play

Across the periodic table Student activity Play

Additional information contained in chemical equations Student activity Play

Air pollution Student activity Play

Air pollution with nitrogen monoxide Slideshow Play

Algebraic method Animation Play

Algorithm of the equation for hydrocarbon combustion Animation Play

Alkaline earth metals Slideshow Play

Alkaline earth metals Student activity Play

Aluminium alloys Student activity Play

Analysis of the products of total combustion Slideshow Play

Analytical tests in organic chemistry Whiteboard presentation Play

Analytical tests in organic chemistry Class activity Play

Application of magnesium hydroxide Slideshow Play

Are all atoms of the same element identical? Student activity Play

Arranging metals according to increasing reactivity Student activity Play

Arranging metals according to increasing reactivity Animation Play

Arranging metals according to their increasing reducing power Student activity Play

Arranging metals according to their increasing reducing power Simulation Play

Atmospheric carbon dioxide Student activity Play

Atmospheric carbon dioxide Animation Play