Global Water Experiment

  • Author: IUPAC and UNESCO
  • Published: 19 March 2012
  • Associated Societies: International Union of Pure and Applied Chemistry (IUPAC)

The Global Experiment, “Water: A Chemical Solution”, was launched on World Water Day 2011 as part of the International Year of Chemistry 2011. Since its launch, over 70,000 students in 80 countries have taken part in what is being called the World's largest chemistry experiment. The students explored the chemistry of water and the role of water in society and the environment with four activities focused on the areas of measurement of water quality and water purification:

  • pH: Students collect data by measuring the pH of a local water body
  • Salinity: Students explore the salinity of their local water body
  • Filtration and disinfection: Students learn how chemistry is used to help provide safe drinking water
  • Desalination: Students construct a solar still from household materials and experiment with it to purify water


This video was presented at the World Water Forum in Marseille, France, on March 12–13, by IUPAC and UNESCO, the coordinators of the global experiment.


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