The document summarizes how different objects reflect and refract light. It explains that a mirror reflects light because it is shiny, smooth and opaque, causing light to travel in a straight line. When light hits a prism, it refracts by bending as it passes through the prism and slows down. Water reflects above water by showing faces, and refracts under water by making objects look bent as light slows down when passing through it. A mirror reflects light due to its opaque and shiny surface, while a prism refracts light by allowing it to pass through and bend due to being translucent or transparent. Light always travels in straight lines and reflects or refracts at the same angle that it hits the surface.