CLEAPSS Supporting practical science and technology
SRA026 - Thermite reaction in flower pots
The thermite reaction is conducted on a relatively large scale in a pair of small flower pots. The white hot molten iron pours though holes in the base onto a thick layer of sand in a metal tray or similar.The mixture is ignited using a domestic sparkler but a variation is also described using an igniter mixture.Schools are advised not to deviate from the details described in this risk assessment.