Universal Indicator Paper

Universal Indicator Paper

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Credit: GIPHOTOSTOCK/SCIENCE PHOTO LIBRARY

Caption: Strips of universal indicator paper change colour depending on the pH of a solution. Here, one indicator strip has been immersed in an acidic solution (orange) while the other one has been immersed in a basic solution (green).

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Keywords: acid, acidic, acidity, alkali, alkalinity, base, basic, basicity, chemical, chemistry, demo, demonstration, educational, experiment, indicator, indicator strip, lab, liquid, measure, measurement, paper strip, ph, ph indicator, solution, still life, test strip, universal indicator

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