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The pigments in red cabbage are excellent examples of natural pH indicators. With colors ranging from red to pink to violet to blue to green, they can brighten up any discussion of acids and bases. Most directions for preparing red cabbage indicator solution require boiling the cabbage in water. This easy recipe calls for a small amount of cabbage, water, a blender, and a strainer. No cooking and no strong odor involved!

Concepts

  • Acids & Bases
  • pH
  • Indicators