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pH Scale
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In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.
Finding Colors
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In this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors.
Disappearing Colors
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In this challenge, learners figure out how to make a juice stain disappear.
pHun with Cabbage
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In this chemistry activity, learners will test the pH of various foods and household substances using cabbage.