Lewis dot-and-cross diagram of a hydrogen iodide molecule Animation Play

Lewis dot-and-cross diagrams Student activity Play

Liquid catalysts Animation Play

Macroelements Student activity Play

Mineral ions in the human organism Slideshow Play

Minerals Student activity Play

Model of hexaiodobenzene Animation Play

Molecular crystals Student activity Play

Not all collisions are effective Student activity Play

Nuclear radiation and live organisms Student activity Play

Nuclear radiation and live organisms Illustration Play

Nutrition: a balanced diet Class activity Play

Occurrence of halogens Slideshow Play

Other uses of halogens and their compounds Student activity Play

Photosynthesis in aquatic plants Animation Play

Photosynthesis under water Whiteboard exercise Play

Physical properties of halogens Student activity Play

Properties of metals Class activity Play

Reaction between bromine or iodine and hydrogen Animation Play

Reaction of potassium bromide and potassium iodide with sulphuric acid Animation Play

Reactions between alkali metals and the halogens Student activity Play

Reactions between alkali metals and the halogens Animation Play

Reactions between metal halides and concentrated sulphuric acid Student activity Play

Reactions with hydrogen Student activity Play

Reactions with hydrogen Whiteboard exercise Play