The Chemistry of Color Tie Dye
Couture, Dr Aaron Judy
The activity introduces students to acids and bases using the juice of a red cabbage as an indicator. The activity includes testing what happens to the indicator when acids and bases are added, and what happens when acids and bases are mixed. The students test several mystery solutions and guess their identity by testing each with the acid/base indicator. Using different colored dyes from the activity, students finish by making their own tie-dye handkerchief.