Light
What is a material that does not allow light to pass through it?
Opaque
All the colors of the spectrum need to be ______ by an object for the object to be black?
absorbed
The transparent layer covering the front of the eyeball is the ______?
cornea
A mirror which bulges toward the viewer and makes things look smaller is a ________mirror.
convex
Insects that move from place to place with the changing seasons are________?
migrating
A material that allows light to pass straight through it
transparent
Bending of light rays is what?
refraction
pupil
A mirror which bulges away from the view and makes things look bigger is a _______ mirror.
concave
Animals which chew the cud?
ruminants
A material that allows light to pass through it, but you cannot see objects on the other side is?
translucent
reflection
The muscles that regulate the size of the pupil are found in the _______?
iris
Animals whose species no longer exist are______.
extinct
The largest group of mammals?
rodents
How does light travel?
Straight line
Who invented the electric light bulb?
Thomas Edison
The light-sensitive lining covering the inside of the eyeball is the _____?
retina
An insect with a straight line down its abdomen and chewing mouth parts is a _______?
beetle
Whales and dolphins have a layer of ______ instead of fur.
blubber
What kind of light is a mixture of colored lights?
White
The type of vision in which both eyes work together to produce on image of the same object is _______?
binocular vision
The structure behind the pupil that refracts and focuses the light it receives is the _________?
lens
A lens which refracts light rays and brings them into focus is a _______lens.
convex
The odor of the skunk is produced by its ______ glands.
musk
What is the series of colored bands that are crated when sunlight is separated?
spectrum
Many nocturnal animals have an extra layer of reflecting cells behind the retina called the _______?
tapetum
The large bundle of fibers that carries the message of what the eye has seen to the brain is the ______?
optic nerve
A lens which scatters light rays is a _______lens?
concave
Chimpanzees belong to the order of mammals called _________.
primates