Ideal for planning Key Stage 3 and 4 chemistry lessons, Professor Hal Sosabowski demonstrates a solid spontaneously coming out of solution in this visually beautiful experiment creating a sodium ethanoate stalagmite.
Just a few seed crystals are enough to form a nucleation site for a super-saturated solution of sodium acetate. This self-perpetuating reaction forms the basis for hand-warming packs.
Professor Hal Sosabowski is a committed chemistry educator who shows how to safely recreate his inspirational demonstrations, which are both educational and spectacular.
Useful websites
An advisory service providing support in science and technology, including health and safety, model risk assessments and a telephone helpline
Ideas about firework related and rocket practicals, including some safety advice
A directory of science resources, information and contacts for schools
Information about the National Science Learning Centres across the country which provide high quality CPD for all those involved in science education
The Royal Society of Chemistry: Chemistry teachers
Resources for science teachers from the Royal Society of Chemistry
