Refraction of light

Target Language or Knowledge:

Match the pairs below:
light ray whose direction has been changed → refracted ray, image of an object that tricks our eyes → illusion, incoming ray → incident ray, angle between the incident ray and normal → angle of incidence, affects speed at which light rays travel in a medium → optical density, triangular block of glass → prism, substance or space through which light can travel → medium, ray that bounces off a surface → reflected ray, angle between the reflected ray and the normal → angle of reflection, change in direction of light as it enters a new medium → refraction, angle between the refracted ray and normal → angle of refraction, imaginary line at 90° to where a ray hits a surface → normal, 90° angle → right angle