Approach your nose to the odour emitters and try to guess the type of water. If you hit pushing the button, a green light will shine, otherwise a red light will appear.
Water, when is pure, is colourless, at least in small quantities, odourless and tasteless. But liquid natural water is never found on its pure state; it always has suspended matter and a diversity of dissolved substances, with a range of concentrations according to its origin. The more common are air gases, but also contains organic compounds, coming from biological residues, their decomposition products or even some micro-organisms. Dissolved substances are responsible for water’s odour and taste. This is the basic principle for the preparation of any eau de cologne : dissolve alcohol and aroma essences in pure water. Possible combinations are endless but almost all of them use bergamot and citron, accompanied by rosemary, thyme, lavender and other aromatic plants.
«Un líquido inodoro» es un módulo de la Sala del Agua incluido dentro de la sección «Agua y ciencia»