Red Cabbage pH Indicator
In this lab based activity students actually make their own pH indicator solution with red cabbage juice! Red cabbage juice contains a natural pH indicator that will change colors according to the acidity of the solution. Red cabbage juice indicator is easily made and exhibits a wide range of color that can be used to make their own pH paper strips. An instructional video is attached. A great lab using red cabbage juice as a pH indicator that shows the pH of a substance with a color change. This activity does involve advanced preparation time for the cabbage juice. Activity closely tied to GLE and could serve as an extension activity.
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