Year 7 Red Cabbage Experiment
Our Year 7 students have been making an indicator from red cabbage by boiling it in water for five minutes and allowing it to cool down. They filtered the mixture through filter paper so the purple liquid dripped into a conical flask. The students then took a couple of drops of the indicator they had made and used it to test two liquids. These were sulfuric acid (indicator went bright pink) and sodium hydroxide (indicator went yellow/green).