Interactive

Indicators

Curated and Reviewed by Lesson Planet

How do chemists know what indicator solution is the perfect match for the acid or base they're studying? Discover a rainbow of indicator-related properties with an Internet resource. Individuals relate the indicator solution to its dissociation constant and observe the color it turns in acidic or basic solutions.

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Instructional Ideas
  • Create an inquiry lab around the indicator solutions featured in the interactive and include the interactive as a part of the pre-lab work
  • Have pupils challenge one another to see who can complete the puzzles the fastest
Classroom Considerations
  • Learners should be familiar with dissociation constants 
Pros
  • Provides practice in linking the indicator with the color it produces, which is handy knowledge for observing acid-base reactions
  • The puzzles are simple to manipulate
Cons
  • None