Take 100 ml water in a vessel and boil for sometime. Add chopped red cabbage into it and stop heating. Let it to cool and strain out the liquid. Your acid-base indicator is ready now. Add it to milk, vinegar, lemon juice and shampoo solution separately. Note your observations and write in your rough note book.
Answers
Answer:
have known about using red cabbage as a color-changing acid base indicator for years. However, this experiment always seemed like too much work. Who has time to boil cabbage? It turns out ME during quarantine, that’s who. I cannot believe how easy this red cabbage acid/base experiment was to put together. The kids had so much fun playing with science and it really is as simple as boiling some cabbage.
Red Cabbage Acid Base Experiment
In the past, I’ve done acid/base experiments using a turmeric solution as the color-changing indicator. (This invisible ink experiment using turmeric is particularly fun!) The problem with turmeric is that the color change for bases is much more impressive than for acids. Red cabbage juice is really cool, because the color change is dramatic in both directions. The purple solution changes to bright pink or red for bases and green or blue for acids.
