Eyes
This is the opening that allows light to enter the eye.
What is the pupil?
A mirror that bulges TOWARD the viewer and makes things look smaller is this.
What is a convex mirror?
When light must be kept completely out of a room, you should choose this kind of material to cover the windows.
What is opaque?
What is red?
This is the third color of the visible spectrum.
What is yellow?
The light-sensitive lining covering the inside of the eyeball is this.
What is the retina?
A lens that scatters light rays is this.
What is a concave lens?
A material that allows light to pass through but prevents you from seeing clearly.
What is translucent?
White light shows its colors when it passes through a prism because of this.
What is refraction?
He invented the electric light bulb.
Who is Thomas Edison?
This is the structure behind the pupil that refracts and focuses the light it receives.
A reflecting telescope uses this type of mirror and a convex lens or eyepiece.
What is a concave mirror?
What is transparent?
You can see your image when you look in a mirror because of this.
What is reflection of light?
The muscles that control the size of the pupil are found in this.
What is the iris?
Many nocturnal animals have an extra layer of reflecting cells behind the retina called this.
What is the tapetum?
Another name for field glasses that are really two small telescopes put together, one for each eye.
What are binoculars?
The path that light always takes.
What is a straight line?
You see this color when all of the colors of the visible spectrum are absorbed.
What is black?
This is used by a periscope to see around corners.
What are mirrors?
This is the type of vision in which both eyes work together to produce an image of the same object.
The back of a spoon is similar to this.
What is a convex lens?
Light is needed in a room, but it should not bee too bright. I should use this type of material on the windows.
What is translucent?
We see white light when this occurs.
What is reflected back?
A pencil in a cup of water appears broken due to this.
What is refraction?