red cabbage turns pink/red when it comes into contact with  - an acid, red cabbage turns blue when it comes into contact with - a base, The red pigment comes from a chemical called - a flavonoid, The sharp flavour is the result of - sulfur-based compounds, The experiment - is a litmus test, A litmus test - shows changes in colour according to the pH level of a substance, pH - is a scale of acidity from 0 - 14, More acidic solutions - have lower pH, More alkaline substances - have higher pH, Neutral substances - have a pH of 7,

Acid Tests

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