Children at a city centre school showcased their ingenious water-saving experiment at the Science Blast educational fair.
The fair asks primary school children from third to sixth class to "investigate the science behind a simple question". The project is group-based and entire classes are asked to participate.
The non-competitive science fair took place yesterday. Dylan Farsaci, a fifth class student of Canal Way Educate Together National School in the Liberties, spoke to Dublin Live about their experiment.