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Invisible Ink Demonstration
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In this chemistry demonstration, learners will discover that phenolphthalein is a chemical that displays different colors depending on the acidity or basicity of the environment.
Acids & Bases
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In this activity, learners test the pH of safe liquids available at home by creating a pH indicator from mashed blueberries.
Witches' Potion Demonstration
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In this chemistry demonstration, learners will discover that phenolphthalein is an acid/base indicator. One learner will read a poem about four witches making a potion.