PhET Simulation: Refraction of LightUsing this physics PhET Bending Light simulation your students will investigate the refraction of light, the index of refraction and the velocity of light through different materials. This is a great online physics lab experiment for introducing the physics concepts associated with the refraction of light. Your students will be able to explain how the indices of refraction affect the angle of refraction, how to calculate the index of refraction and how to calc