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Mystery Powders
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Learners are given mysterious white powders and have to determine their identity with chemical tests.
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Indicating Electrolysis
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Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
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Reaction: Yes or No?
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In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.
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Finding Colors
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In this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors.
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Powder Particulars
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In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.
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Candy Chemistry
Source Institutions
In this experiment, learners test multiple food items to see if they are an acid or base using an indicator solution created with red cabbage.