What is the form of energy that you can see?

What is the ray that comes from a light source and strikes a surface?

What is the bending of light when it travels from one medium to another?

What is the term for a non-human made source of light?

What is a line that is perpendicular to the reflecting surface at the point where the incident ray strikes the surface?

What is the angle between the normal and the refracted ray?

What is the transfer of radiant energy, such as light?

What is the phrase "the angle of reflection equals the angle of incidence"?

What is the "crowdedness" of particles in a substance?

What is the energy pathway for a chemiluminescent source?

What is a mirror that bulges outward and provides an image of a larger area?

What is a substance that mostly refracts light?

What is the source for emission of visible light by a hot object?

What is the angle between the normal and the reflected ray?

What is the term of different atmospheres that light can travel through?