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2016 IUCr crystal growing competition for schoolchildren

[Crystal growing logo]
[2015 Bronze winners] (l-r) Denise Espíndola, Micaela Todoroff and Agustina Villalba (Escuela de Educacion Secundaria No. 2 Luis Federico Leloir, Comandante Nicanor Otamendi, Buenos Aires, Argentina) proudly show the bronze medal they won in the 2015 competition (11-15 age group). For the full results, please visit

The IUCr Crystal growing competition is open to all schoolchildren and aims to introduce students to the exciting, challenging and sometimes frustrating world of growing crystals. This initiative was originally launched in 2014 as part of the celebrations for the International Year of Crystallography and has now reached its third edition.

How to participate?

The winners will be those who most successfully convey their experiences to the panel of judges in a video report.

Each contribution should clearly show or mention the experimental work carried out by the participants during the growing of their single crystals (compounds and methods used are free of choice). Furthermore the contribution should reflect in a creative way on the experimental work and theoretical background and/or applications. It is strongly recommended to use English subtitles when applicable and to provide the name and school of the participants along with their photos at the end of the video.

Videos should be submitted at

Important dates

Closing date for submissions: 20 November 2016

Notification of winners and launch of 2017 edition: 27 January 2017


  • The competition is open to students of primary or secondary schools; maximum age 18.
  • Videos submitted to local competitions during 2016 may be also submitted to the IUCr competition.
  • Duration of video: strictly no longer than four minutes.
  • Format: mpeg, avi or mov, or hosted on a public video platform (e.g. YouTube, Vimeo)
  • Language: mother language of participant or English.
  • A maximum of two entries per category per school is permitted.
  • The judging panel will be nominated by the IUCr. The decisions of the judging panel are final.


  • Under 11 (primary school)
  • 11-15 (high school middle forms)
  • 15-18 (high school upper forms)


The winning contributions in each category will receive 'Young crystal growers' certificates and medals.

Criteria for evaluation

A panel of judges will evaluate the entries. The following six criteria will be used: creativity, aesthetic value, description of working plan and experimental work, clarity of explanations, scientific background, and safety.

For more information, please visit