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

Acids and alkalis Class activity Play

Addition of hydrogen bromide to ethene Whiteboard exercise Play

Alkali metals Student activity Play

Alternatives to artificial fertilisers Illustration Play

Application of potassium hydroxide Slideshow Play

Atomic number Student activity Play

Atomic number Whiteboard exercise Play

Atomic radii Student activity Play

Atomic radii of alkali metals Animation Play

Atomic radii of alkali metals Slideshow Play

Born-Haber cycle Student activity Play

Bromide-bromate reaction: a kinetic study Student activity Play

Bromide–bromate reaction: a kinetic study Whiteboard exercise Play

Bromide–bromate reaction: a kinetic study Whiteboard exercise Play

Buffering action Whiteboard exercise Play

Buffering action Student activity Play

Changes in the ionisation energy down the group Animation Play

Chemical elements that make up black soil Illustration Play

Chemical energy sources Student activity Play

Collecting hydrogen gas Animation Play

Common unidentate ligands Chart Play

Comparing the reactivity of alkali metals and the alkaline-earth-metals Animation Play

Comparison of the reactivity of Group 1 and 2 metals Student activity Play

Components of plasma Slideshow Play