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Lesson Planet
The ability of litmus paper to change color in the presence of an acid or base is due to lichens in the paper. The narrator explains a litmus test and what pH measures, and then goes on to show how to make litmus paper at home using cabbage and coffee filters. He finishes by explaining how the process works.
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CCSS:
Adaptable
NGSS:
Adaptable
Additional Tags
Instructional Ideas
- When teaching acids/bases, show this short video and then have classes make their own litmus paper and test materials for acidity
- After they make a coffee filter into litmus paper, have pairs cut it into strips and keep the extras to use for future labs
Classroom Considerations
- Video is appropriate for elementary, middle, and high schoolers
- This video is hosted on YouTube
Pros
- Shows a very cool, easy experiment scholars can do at home
- The materials needed for the experiment shown are cheap and found at every grocery store
Cons
- None