The color that a substance turns a pH indicator is a characteristic property of that substance. An acid can neutralize a base, and a base can neutralize an acid Students squeeze red cabbage leaves in ...

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 ...

Make an acid-base indicator. Dr Yan uses some very colourful science to find out what's acidic in his kitchen. Take 1/4 red cabbage ... we measure acidity: the pH scale. The scale spans from ...

pupils from year 9 and year 10 joined forces to create a giant pH-indicator chart. Working in pairs, each pair made a different indicator from fruit and vegetables, including plum skin, turnip skin, ...