Definitions
This happens when light hits a surface and bounces off.
What is Reflect?
Light reflects off the student, enters the teacher’s eyes, passes through the different parts of the eye, and is processed by the brain to create an image.
Why can the teacher see the student?
This material primarily transmits light but reflects a small amount when impurities are present.
What is glass?
The first part of the eye that refracts the light through the pupil
What is Cornea?
When light passes through clear glass, this happens.
What is transmitted?
This happens when light passes through a material.
Light reflects off himself, bounces off the mirror, enters his eyes, and is strong enough for the brain to process it and produce an image.
Why can the student see himself in the mirror?
This material reflects all the light that hits it.
What is Mirror? What is a reflective material (like a mirror or shiny metal)?
This controls the pupil making it big when its dark and small when its light.
What is Iris?
When light is taken in by a material and converted to energy, this happens. (Hint: The material “soaks up” the light.)
What is absorbed?
This happens when light changes direction or bends as it passes from one material to another.
What is Refract?
This is the path light travels under normal conditions.
What is straight?
This material reflects and transmits equal amounts of light.
What is a One-Way-Mirror?
Focuses the light bending when something is far or flattening when an object is near. Sending the electrical signals to the retina.
Focuses the light bending when something is far or flattening when an object is near. Sending the electrical signals to the retina. What is Lens?
These materials let some light pass through but not all, so you can see shapes but not details. (Hint: They are not completely clear.)
What are translucent materials?
This is when a phenomenon is made smaller so we can study and explore it more easily.
This type of mirror has a partially silvered surface that lets some light pass through while reflecting the rest.
What is the One-Way-Mirror?
This happens when light hits a smooth, shiny surface and bounces off in a predictable direction.
What is reflection?
This is made up of 130 million cells that pick up the electrical signal and sends them through the optical nerve to the brain.
What is the Retina?
These materials do not let any light pass through. (Hint: You cannot see through them at all.)
What is Opaque?
The process of making a mirror by putting a layer of metal on the back
What is Silvering?
We see some objects more clearly than others because some materials let light pass through easily while others block or scatter it. (Hint: Compare glass, wax paper, and wood.)
Why do some materials appear transparent, translucent, or opaque?
This type of mirror has a partially silvered surface that lets some light pass through while reflecting the rest.
What is a one-way mirror?
It changes the electrical signal into an image we can see. If there isn’t enough light, no image appears.
What is the Brain?
This happens when light bends as it moves from one material into another, like from air into water. (Hint: Think of a pencil looking bent in a glass of water.)
What is refraction?