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Follow the bending beam (or the straight beam, as the case may be). That’s how simple it is to demonstrate the path of light as it travels through the different media of these unique devices.
Developed by teacher Dave Drummer of Kutztown, PA, these double convex and double concave &"air lenses&" can be filled with water and surrounded by air, filled with air and placed in water, filled with and placed in water, or simply filled with air. Shine a laser beam through each variation and explore the results. Grades 10-12.
Includes: 1 double convex air lens, 1 double concave air lens, instructions with explanations, and a reproducible student worksheet with exercises.



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