Chemistry demonstrations have an important role to play in teaching. They provide a visual attraction to the fun of chemistry and are a teaching aid for use with students. - They are often spectacular, stimulating and motivating - They allow students to see experiments which they would not be able to perform themselves, for reasons of skill, safety, expensive apparatus and materials or limited resources such as fume cupboards - They allow students to see a skilled practitioner at work The ideas behind the demonstrations in this book come from many sources. Some are original, but most have been collected from literature and from chemistry teachers all over the world. As many come from more than one source, in general no attempt has been made to acknowledge the source - some were suggested by as many as thirty different people. All the demonstations have been compiled and rigorously tested by Ted Lister, The Royal Society of Chemistry Teacher Fellow 1993-94, at Warwick University to ensure reproducibility, and subsequently trialled by schools and colleges to produce a clear and concise set of instructions for teachers.