Red cabbage contains a chemical called anthocyanin. This pigment is a natural acid-base indicator. It is blue in neutral substances, like plain water. When an acid like lemon juice gets in the water, ...

Most people use cabbage for cooking but it can also be really ... But when acid in the lemon juice gets in the water a reaction makes the indicator molecule change so the color looks pink. When the ...

Cabbage juice is a known natural pH indicator, often used to test imbalances in agriculture, environmental science, medical diagnostics and in the food industry. Other natural pH indicators ...

Prepare desired household chemicals, ie: vinegar, soap, ammonia, lemon juice, clear soda pop, drain cleaner, baking soda solution, etc. If desired, prepare red cabbage indicator by boiling red cabbage ...

Squeeze some lemon juice into cup #1 ... Acidic substances should make the cabbage indicator turn bright pink. The basic, bicarbonate of soda, should turn dark blue. There is some vinegar in ...