Bubbles aren't just for children. In the third installment of a seven-part series, teenagers use bubble solution to create bubbles and observe patterns of refraction on the bubble surfaces. Application of this concept to thin films in general allows participants to consider how refraction relates to biosensors for cancer detection.

Concepts

optics, refraction, light refraction, the index of refraction, biomedical engineering, technology resources

Show More Show Less

Instructional Ideas

• Plan a visit to a local college to see a Bragg mirror

Classroom Considerations

• Activity requires materials and prior preparation
• If using Bragg mirror video, learners need access to an Internet-connected device

Pros

• Your class will appreciate hands-on nature of activity
• Resource includes investigating questions to use with the class

Cons

• A lot of information is simply a repeat from previous lessons