Transcription of Bang Goes The Theory Teacher's pack - BBC
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Bang Goes The Theory Teacher's pack - BBC
Red cabbage indicator5 Bunsen burnerSticky SnailsBeakerred cabbage6 Red cabbage indicatorSuitable for: 11 14 yearsCurriculum and learning links: Acids and alkalisLearning objectives: Explain what an indicator is and what it does. Investigate whether household substances are acids or alkalis. BBC Give students the Making an Indicator worksheet. Ask them to make the acid and alkali indicator from red cabbage by following the instructions on the worksheet. Ask students to use the indicator to test known solutions of acid, alkali and distilled water.
r 7 Want to explore further? • This activity could be expanded to include an explanation of the pH scale and the fact that different indicators give different colours.
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