This document describes an experiment to test how different colored surfaces absorb heat at different rates. The experiment involves measuring the temperature increase of water in identically sized cans painted different colors and exposed to a light bulb. Precise measurements and a consistent procedure are emphasized to get useful results. Black was found to absorb heat the most, increasing the most in temperature, while white absorbed the least. This information about color absorption could be applied to designing solar-powered devices like pizza box ovens.