Vocabulary1

1.Bioluminicence: Light produced by livin organisms.

2. Light ray: A straight-line beam of ligth as it travels outward from its source.

3. Law of Reflection: The angle of an incoming light ray equals the angle of the reflected ray.

4.Concave mirror: A mirror that curves in on the shiny side.

5. Convex mirror: A mirror that curves out on the shiny side.