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How to Make Red Cabbage pH Indicator By Anne Marie Helmenstine, Ph.D., About.com Guide "Red cabbage juice can be used to test the pH of common household chemicals." Make your own pH indicator solution! Red cabbage juice contains a natural pH indicator that changes colors according to the acidity of the solution. Red cabbage juice indicator is easy to make, exhibits a wide range of colors, and can be used to make your own pH paper strips (watch the video).

goes with: The pH Factor (http://www.miamisci.org/ph/) and Alien Juice Bar (http://sv.berkeley.edu/showcase/flash/Juicebar.html)