Beer's Law Lab

The PhET project at the University of Colorado creates "fun, interactive, research-based simulations of physical phenomena." This particular simulation deals with Beer's Law: "The thicker the glass, the darker the brew, the less the light that passes through." Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer! The simulation is also paired with a teachers' guide and related resources from PhET, and is also available in multiple languages.