Activity

Basically Acidic Ink

Curated and Reviewed by Lesson Planet
This Basically Acidic Ink activity also includes:

If you don't want to drink red cabbage juice, here's another use for it—a decoder! Using vinegar and ammonia-based window cleaning liquids as invisible inks, scholars create designs in the second lesson of the series. Red cabbage juice becomes the key to uncovering the designs.

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Additional Tags
Instructional Ideas
  • Have learners write secret messages to each other in invisible ink
Classroom Considerations
  • A variety of liquids is necessary, such as red cabbage juice; see materials section for complete list
  • Be sure to check district policy before showing video clips of movies
Pros
  • Provides a list of investigating questions to use with pupils during discussion and activity
  • Activity is fun and engaging
Cons
  • None