Accent Investigating EnergyAccent Investigating Energy Study heat and light with the simplest of materials - a black can, a silver or white can and a connecting copper bar. Measure the temperature inside dark and shiny bright cans to determine the different ways light and heat are absorbed and radiated. Fill both cans with water - one with hot, one with cold - and connect them with the included energy transfer bar. Observe how the temperature of the water changes. Qty :