Most Liquids Contain Either Acid or Alkali
Investigating acidity or basic properties of different liquids is both fun and educational. Using pH indicators is safe and simple. You may perform tests on drinks, foods, saliva, detergents and more. Although you can use commercially available pH indicators, you may also want to build your own pH indicator.
Material and instructions:
Make an acid-base indicator and use it to test different liquids for acidity or alkalinity. Find out what liquids are neutral. Offer explanations and reasons of acidity and alkalinity of liquids. Classify liquids that you test, based on their pH.
Details of this project:
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