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Course: Exploratorium > Unit 2
Lesson 2: Soap Film on a Can- Introduction: Why do we see colors in oily water and soap bubbles?
- Create your soap film viewer: Materials, tools, and steps
- To do and notice: Horizontal bands of color
- What’s going on: Reflections, interference, and … a water sandwich?
- Soap Film on a Can: Complete activity guide
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Introduction: Why do we see colors in oily water and soap bubbles?
Soap bubbles are transparent, so where do all those beautiful, constantly shifting colors we see come from? In this science snack activity, Paul Doherty of the Exploratorium Teacher Institute presents an easy way to explore and understand the science in your suds. Hint: think water sandwich!