Is it an acid, base, or neutral? 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.

The pH scale measures how strongly acidic ... then that shows that your experiment went well and red cabbage is a good indicator. It gave a range of colours with different substances.

Most people use cabbage for cooking ... This blue liquid is your indicator solution for the chemistry experiment. Next, pour about 1 tablespoon of the indicator into each of three clean clear plastic ...