WorksheetsHMH - The Science Behind Sight
Total questions: 23
Worksheet time: 35mins
What do your eyes help you do?
see
hear
taste
smell
feel
how many senses are there?
2
3
5
7
what is the definition of the word LUMINOUS?
clear, can see through it
gives off light
when light bounces off a surface
What is the meaning of the word TRANSPARENT?
does not let light pass through it
gives off light
clear, allows light to pass through it
What is the meaning of the word OPAQUE?
doesn't let light pass through
clear, lets light pass through
when light bounces off a surface
What is the meaning of the word REFLECT?
gives off light
when light bounces off a surface
estimate/guess the size/amount of something
Why do objects in a dark room appear black?
The objects are black
you need glasses
there is no light to help you see
your pupil can't take in a lot of light
draw an object with a shadow.
draw an object that is OPAQUE
draw an object that is TRANSPARENT
Why do we see luminous things?
They give off light
light is shone on them
our eyes let us
they are big enough to see
Do tables, chairs, and soccer balls give off light or reflect light?
reflect
give off
What does light reflect the best off?
shiny surfaces
hard surfaces
bright surfaces
smooth surfaces
When an eyelid blinks, it washes the surface of the eye with ____. This washes dust and other things off the eye.
water
tears
sweat
blood
What is the tiny tube that tears leave your eye through?
eyelid
pupil
iris
tear duct
This is the colored part of the eye
eyelid
pupil
iris
tear duct
black opening in the middle of the iris
iris
pupil
tear duct
eye lid
closes to protect the eye
eyelid
tear duct
iris
pupil
the image that the lens sends to the retina is ___
right side up
inside out
upside down
tilted
The eye becomes ____ when looking at far away things
thinner
thicker
What is refraction?
light reflecting off a surface
light being absorbed into a surface
light bending
what do glasses do?
the lenses bend light
the lenses reflect light
the glasses act as magnifying glasses
the glasses stop too much light from entering your eye
draw an eye
