Concept and measurement of pH

Introduction to pH


Test the pH of everyday liquids such as coffee, saliva, and soap to determine if they are acidic, basic, or neutral. Investigate how adding more of a liquid or diluting it with water affects the pH.

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pH Scale


Test the pH of things like coffee, saliva, and soap to determine if each is acidic, basic, or neutral. Display the relative number of hydroxide ions and hydrogen ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!

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