WorksheetsThe Human Eye and the Colourful World_LS_3
Total questions: 69
Worksheet time: 5hrs 18mins
There are two types of light-sensitive cells in the human eye :
(a) Where are they found ?
The two types of light-sensitive cells are found in the retina.
They are called rods and cones.
Rods are sensitive to dim light and cones are sensitive to bright light and colours.
There are two types of light-sensitive cells in the human eye :
(b) What is each type called ?
The two types of light-sensitive cells are found in the retina.
They are called rods and cones.
Rods are sensitive to dim light and cones are sensitive to bright light and colours.
There are two types of light-sensitive cells in the human eye :
(c) To what is each type of cell sensitive?
The two types of light-sensitive cells are found in the retina.
They are called rods and cones.
Rods are sensitive to dim light and cones are sensitive to bright light and colours.
What are rods and cones in the retina of an eye ? Why is our night vision relatively poor compared to the night vision of an owl ?
What is the first statement of the audio clip?
Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
Cones are the cone-shaped cells present in the retina of an eye which are sensitive to bright light.
Our night vision is relatively poor compared to the night vision of an owl
due to the presence of relatively smaller number of rod cells in the retinas of our eyes.
What are rods and cones in the retina of an eye ? Why is our night vision relatively poor compared to the night vision of an owl ?
What is the second statement of the audio clip?
Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
Cones are the cone-shaped cells present in the retina of an eye which are sensitive to bright light.
Our night vision is relatively poor compared to the night vision of an owl
due to the presence of relatively smaller number of rod cells in the retinas of our eyes.
What are rods and cones in the retina of an eye ? Why is our night vision relatively poor compared to the night vision of an owl ?
What is the third statement of the audio clip?
Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
Cones are the cone-shaped cells present in the retina of an eye which are sensitive to bright light.
Our night vision is relatively poor compared to the night vision of an owl
due to the presence of relatively smaller number of rod cells in the retinas of our eyes.
What are rods and cones in the retina of an eye ? Why is our night vision relatively poor compared to the night vision of an owl ?
What is the fourth statement of the audio clip?
Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
Cones are the cone-shaped cells present in the retina of an eye which are sensitive to bright light.
Our night vision is relatively poor compared to the night vision of an owl
due to the presence of relatively smaller number of rod cells in the retinas of our eyes.
How does the convex eye-lens differ from the ordinary convex lens made of glass? What is the first statement of the audio clip?
The focal length of the convex eye-lens can be changed by the action of ciliary muscles
but the focal length of the ordinary convex lens made of glass is fixed.
How does the convex eye-lens differ from the ordinary convex lens made of glass? What is the second statement of the audio clip?
The focal length of the convex eye-lens can be changed by the action of ciliary muscles
but the focal length of the ordinary convex lens made of glass is fixed.
What happens to the size of pupil of our eye in dim light
pupil becomes large.
pupil becomes small
What happens to the size of pupil of our eye in bright light ?
pupil becomes large.
pupil becomes small
Name the cells on the retina of an eye which are sensitive to bright light
Cones
Rods
Name the cells on the retina of an eye which are sensitive to dim light
Cones
Rods
Name the cells on the retina of an eye which have sensation of colour.
Cones
Rods
Draw a simple diagram of the human eye and label clearly the cornea, iris, pupil, ciliary muscles, eye-lens, retina, optic nerve and blind spot.
Describe the working of the human eye with the help of the above diagram. What is the first statement of the audio clip?
Working of the human eyeThe light rays coming from the object kept in front of the eye enter the cornea, pass through the pupil and fall on the eye lens.
The eyes lens is convex lens, so it converges the light rays and produces a real and inverted image of the object on the retina.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the second statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
The eyes lens is convex lens, so it converges the light rays and produces a real and inverted image of the object on the retina.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the third statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
And, if the intensity of light is small, then iris expands the pupil so that more light may enter the eyes.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the fourth statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
And, if the intensity of light is small, then iris expands the pupil so that more light may enter the eyes.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the fifth statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
And, if the intensity of light is small, then iris expands the pupil so that more light may enter the eyes.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the sixth statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
And, if the intensity of light is small, then iris expands the pupil so that more light may enter the eyes.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
Describe the working of the human eye with the help of the above diagram. What is the seventh statement of the audio clip?
If the intensity of light is large, then iris contracts the pupil and reduces the amount of light entering the eye.
And, if the intensity of light is small, then iris expands the pupil so that more light may enter the eyes.
The image formed on the retina is conveyed to the brain by the optic nerve and gives rise to the sensation of vision.
The eye adjusts itself to deal with ight of vaying intensity with the help of the iris.
The iris automatically adjusts the size of the pupil according to the intensity of light received by the eye.
It is the front part of the eye. The light coming from objects enters the eye through cornea.
Cornea
It controls the amount of light entering the eye.
Iris
It controls the illumination in the eye.
Pupil
The focal length of the eye-lens can be changed by changing its shape by the action of ciliary muscles.
Ciliary muscles
It focuses light on to the retina.
Eye-lens
It is a delicate membrane having a large number of light sensitive cells called ‘rods’ and ‘cones’ which respond to the intensity of light and colour of objects respectively.
Células ganglionares
Bastones
Córnea
Retina
This structure is the outer coating of the front of the eye ball.
Cornea
Lens
Retina
Optic Nerve
This structure is located behind the iris and bends light onto the retina.
Retina
Lens
Optic Nerve
Pupil
This structure is the back of the eye and it sends images to the optic nerve.
Cornea
Lens
Retina
Pupil
This structure sends images to the brain so we see the image correctly.
Iris
Optic Nerve
Cornea
Lens
This structure is the black, center part of the eye. Light enters the eye here.
Iris
Optic Nerve
Pupil
Lens
This structure is the colored part of the eye.
Pupil
Iris
Retina
Optic Nerve
Light travels in a __________ line until it refracts off an object.
Curved
Straight
Zig Zag
purple
The path light takes through the eye....
Cornea, Retina, Optic Nerve, Iris, Pupil, Lens
Cornea, Iris, Optic Nerve, Pupil, Lens, Retina
Cornea, Iris, Pupil, Lens, Optic Nerve, Retina
Cornea, Iris, Pupil, Lens, Retina, Optic Nerve,
When an image hits the retina it is viewed...
Right side up
Upside down
Blurry
Not there
Rods help us see...
in color
black, white, and grey
only in yellow
only in blue
Cones help us see...
color
black, white, and grey
only purple
only with glasses on
What is letter H pointing to?
Lens
Optic Nerve
Iris
Cornea
What is letter I pointing to?
Cornea
Iris
Optic Nerve
Pupil
What is letter G pointing to?
Cornea
Iris
Optic Nerve
Lens
What is letter F pointing to?
Lens
Iris
Pupil
Optic Nerve
What is letter B pointing to?
Optic Nerve
Retina
Iris
Pupil
What day is it today?
Monday
Tuesday
Wednesday
Friday
What is this quiz about?
Eye
Nose
Ear
Lebron James
What do you think?
super easy
easy
I can handle it
Regulates the amount of light entering the eye and gives the eye its color.
Iris
Lens
Pupil
Retina
The place where the optic nerve leaves the retina, where there are no light-sensitive cells is the ________________.
lens
cornea
blind spot
sclera
The tough, clear covering over the iris and pupil that helps protect the eye is the __________________.
retina
lens
sclera
cornea
______________________ is the thick, clear jelly that helps give the eyeball its shape.
aqueous humor
vitreous humor
blind spot
optic nerve
The path light takes through the eye....
Cornea, Retina, Optic Nerve, Iris, Pupil, Lens
Cornea, Iris, Optic Nerve, Pupil, Lens, Retina
Cornea, Iris, Pupil, Lens, Optic Nerve, Retina
Cornea, Iris, Pupil, Lens, Retina, Optic Nerve,
What nerve sends signals from the eye to the brain?
The brain nerve
The eye nerve
The ostrich nerve
The optic nerve
Which BEST describes what happens to your pupils in the dark?
Your pupils get smaller because they need to let more light in.
Your pupils get larger to let more light in.
Your pupils get smaller to let light out.
Your pupils get larger because they don't know what else to do.
Primarily responsible for visual perception and are involved in some forms of visual, short-term memory.
parietal lobe
brain stem
occipital lobe
thalamus
The part of the cerebral cortex that receives and processes sensory nerve input from the eyes.
optic chiasm
temporal lobe
optic nerve
visual cortex
A pair of nerves transmitting input signals to the brain from the retina at the back of the eye.
optic nerve
visual cortex
temporal lobe
olfactory bulb
The X-shaped structure formed at the point below the brain where the two optic nerves cross over each other.
visual cortex
optic nerve
optic chiasm
cerebral hemisphere
Optic nerve: What is the first statement of the audio clip?
It conveyes the image formed on the retina to the brain.
If we walk from a dark room into sunlight, the pupil of the eye contracts. On again entering the dark room, the pupil of the eye expands.
When we enter a darkened cinema hall from bright sunshine, at first we cannot see our seats clearly but gradually they become visible.
This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly.
After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
Optic nerve: What is the second statement of the audio clip?
It conveyes the image formed on the retina to the brain.
If we walk from a dark room into sunlight, the pupil of the eye contracts. On again entering the dark room, the pupil of the eye expands.
When we enter a darkened cinema hall from bright sunshine, at first we cannot see our seats clearly but gradually they become visible.
This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly.
After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
Optic nerve: What is the third statement of the audio clip?
It conveyes the image formed on the retina to the brain.
If we walk from a dark room into sunlight, the pupil of the eye contracts. On again entering the dark room, the pupil of the eye expands.
When we enter a darkened cinema hall from bright sunshine, at first we cannot see our seats clearly but gradually they become visible.
This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly.
After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
Optic nerve: What is the fourth statement of the audio clip?
It conveyes the image formed on the retina to the brain.
If we walk from a dark room into sunlight, the pupil of the eye contracts. On again entering the dark room, the pupil of the eye expands.
When we enter a darkened cinema hall from bright sunshine, at first we cannot see our seats clearly but gradually they become visible.
This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly.
After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
Optic nerve: What is the fifth statement of the audio clip?
It conveyes the image formed on the retina to the brain.
If we walk from a dark room into sunlight, the pupil of the eye contracts. On again entering the dark room, the pupil of the eye expands.
When we enter a darkened cinema hall from bright sunshine, at first we cannot see our seats clearly but gradually they become visible.
This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly.
After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
