This document contains a series of questions about light and optics. It asks about the colors of the rainbow, whether light travels through air or water, examples of artificial light sources, how a light bulb works, inferences that can be made about the environment of angelfish, devices that produce light by passing an electric current through a gas, what can be used to split white light into colors, why refraction occurs, the meaning of "minute" in the context of the electromagnetic spectrum visible to humans, how we can see our teacher's face, how light can behave as both a particle and a wave, why light from stars takes thousands of years to reach us, one example of an artificial light source, what happens when light