Smelly Science part of the Weird Science Range

The rotten egg smell comes from the reaction between the iron in the yolk and the sulphur in the white.

• Stink bombs consist of ammonium  sulphur, which smells strongly of rotten eggs
• Heat forces sulphur into the air and causes an offensive odour
• Stink bombs are used to test the efficiency of air fresheners and deodorisers
• The reaction of vinegar and bicarbonate of soda produces carbon dioxide. This allows the stink bomb to explode.
• When the contents of a stink bomb are exposed to the air, they react to the moisture and a mixture of hydrogen sulphide and ammonia is released.
• Ages 8+