Your red cabbage indicator should be dark blue in color. The color of the cabbage indicator will change to red or pink if the solution is an acid and it will change to green or yellow if it is a base.

Acid and Bases pH Experiment (w/ Red Cabbage Indicator) Episode 2 | 4m 36s. A crash course on the basic differences between acids and bases. 11/08/2017 ...

For more information, including the recipes we used for the red cabbage pH indicator and for the colored solutions we produced in this segment, visit ScienceWithDrBob.com. Most Read.