Can a Cabbage Tell Acid from Alkali?

Can a cabbage tell you if something is an acid or an alkali? 🟣🥬In this Chemistry practical I make red cabbage and turmeric indicators, test household liquids, and compare the results with universal indicator. 📋 Results Vinegar: acid (cabbage pink, turmeric yellow, universal indicator pink/red) Water and salt solution: neutral (cabbage purple, turmeric yellow, universal indicator green) Dishwasher soap: alkali (cabbage green, turmeric orange-red, universal indicator blue) Red cabbage and universal indicator showed acid, neutral and alkali. Turmeric only changed in the alkali. 📝 Exam tips Acid: pH below 7. Neutral: pH 7. Alkali: pH above 7. Describe results with the starting colour, the final colour and the conclusion. Higher tier: neutralisation is H⁺ + OH⁻ → H₂O. ⚠️ Safety: wear goggles, take care with hot water, and don't taste anything. Dishwasher soap can irritate skin and eyes, and universal indicator contains ethanol, so keep it away from flames. 🙋 Free help Stuck on acids and alkalis? Ask in the comments and I'll help, free. Please don't share personal details. 👩‍🏫 About me I'm an experienced science teacher and have worked as a GCSE and IGCSE examiner for AQA, OCR and Edexcel. This channel is independent and isn't run or endorsed by any exam board. 🧪 More fun practicals: [playlist link] 📚 AQA GCSE required practicals: [   • Fun Science Experiments | GCSE Science Exp...  ] #GCSE #KS3#Chemistry #pH #AcidsAndAlkalis #RedCabbage #UniversalIndicator Tags GCSE chemistry, pH indicators, red cabbage indicator, turmeric indicator, universal indicator, acids and alkalis GCSE, acids and alkalis KS3, acid or alkali test, pH scale GCSE, GCSE chemistry practical, household acids and alkalis, natural indicators, GCSE science revision 🙋 Stuck on acids and alkalis? Ask below and I’ll help, free. 🔔 Subscribe for the next practical.