Most people use cabbage ... experiment. Next, pour about 1 tablespoon of the indicator into each of three clean clear plastic cups. Add 1 drop of lemon juice to the cup labeled Acid and gently swirl ...

Visit BBC Webwise for full instructions Dr Yan uses a red cabbage to measure the acidity of different foods in his kitchen. Be prepared: this experiment ... the pH scale. The scale spans from ...

Make your own acid-base indicator from red cabbage, then test various household substances. Acids and bases are classes of materials that have different properties. Acid-base indicators change color ...