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Chapter 3: Light
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A material that does not allow light to pass through it is ________________.
opaque
A material that lets light pass straight through it is __________________.
transparent
If a material lets light pass through it, but you cannot see objects on the other side of it, that material is __________
translucent
Light always travels in a _______________line.
straight
_____________light is a mixture of colored lights.
White
The series of colored bands that are created when sunlight is separated is the ____________.
spectrum
If all of the colors of the spectrum are absorbed by an object, that object is ________________.
black
Bending of light rays as they enter a new material is called _______________
refraction
A blue dress appears blue because the dress is __________________ blue light.
reflecting
The electric light bulb was invented by ________________
Thomas Edison
The transparent layer covering the front of the eyeball is the __________________.
cornea
The opening that lets light enter the eye is the ___________.
pupil
The muscles that regulate the size of the pupil are found in the _____________.
iris
The light-sensitive lining covering the inside of the eyeball is the ______________.
retina
The structure behind the pupil that refracts and focuses the light it receives is the ______________.
lens
The large bundle of fibers that carries the message of what the eye has seen to the brain is the ______________.
optic nerve
The type of vision when both eyes work together to produce an image of the same object is _________________.
monocular vision
Many nocturnal animals have an extra layer of reflecting cells behind the retina called the _____________.
tapetum
This is a _______________ lens.
concave
This is a ______________ lens.
convex
What are the 6 colors of the spectrum in order?
Red, orange, yellow, green, blue, violet


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