Bubbles and Biosensors

Each group needs:

• 1 Styrofoam plate
• 50 ml bubble solution (store-bought or homemade)
• 3 plastic drinking straws
• (optional) 50 ml water
• (optional) 3-ml graduated plastic transfer pipet; such as 20 for $4.76 available athttps://www.amazon.com/Rienar-Disposable-Transfer-Graduated-Pipettes/dp/B00P7QZDK4/ref=sr_1_1?ie=UTF8&qid=1512079406&sr=8-1&keywords=3-ml+graduated+plastic+transfer+pipet
• (optional) 1 sample Bragg mirror, which is not available for purchase to the general public in the form needed for the activity, but may be available for free by requested donation from a university with a photonics lab. Contact physics, electrical engineering and/or chemistry departments. Availability depends on current research being performed at the university. Alternative: If Bragg mirrors are not available, have students view the 17-second Bragg Demonstration Video (MOV) instead, from which they can answer the worksheet questions.
• What Does Light See? Worksheet (PDF), one per student (students should already have this worksheet, given to them during the associated lesson)