This fun, engaging, inquiry-based PhET lab is a great way to get your students interested in the refraction of light and Snell’s Law. The online lab uses the Bending Light HTML5 simulation from PhET Interactive Simulations. The simulation can be run from most cellphones, tablets and computers. Nothing to download or install. The link for the simulation is: https://tinyurl.com/y8p59wbk. In the first activity students will learn how to draw ray diagrams for light as it enters, travels through and