A crystal growing competition for school students in three age groups (Year 7-8, Year 9-10, Year 11-13 in New Zealand). School groups are sent 100 g samples of Alum and have about 6 weeks to grow their crystals and submit them for judging. Winning crystals in each age group will be displayed at the 2014 International Science Festival in Dunedin in early July. The competition is run in conjunction with the New Zealand Institute of Chemistry and the University of Otago.