Science: Elementary School: Grades 3, 4 and 5 Quiz - Eyes and Ears (Questions)

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Eyes and ears are the sense organs that enable sight and hearing. The ability to hear sound is very important - it helps us to communicate via language and to hear danger approaching. Vision is even more important - most of the things we do in our everyday lives (reading, writing, catching a ball etc.) rely on our sight. The famous magician, escapologist, entertainer and stunt artist, Harry Houdini, once said, "What the eyes see and the ear hears, the mind believes." But just how do these amazing sense organs work?

1. What does the eye respond to?
[ ] Colour
[ ] Shape
[ ] Light
[ ] Movement
2. The ear has two main functions - one is to hear but what is the other?
[ ] To sense changes in the weather
[ ] To sense changes in position
[ ] To sense changes in temperature
[ ] To regulate hormones
3. Which of the following protects the eye?
[ ] The cornea
[ ] The retina
[ ] The iris
[ ] The eyelids
4. Sound waves cause which three small bones in the ear to vibrate?
[ ] Ossicles
[ ] Follicles
[ ] Ampullae
[ ] Cochlea
5. Which is the colored part of the eye?
[ ] The cornea
[ ] The pupil
[ ] The iris
[ ] The retina
6. Sound waves travel down the ear canal before hitting what?
[ ] The pinna
[ ] The inner ear
[ ] The ear lobes
[ ] The ear drum
7. The lens focuses images onto what at the back of the eye?
[ ] The retina
[ ] The pupil
[ ] Eyelashes
[ ] The cornea
8. Which nerve takes signals from the ear to the brain?
[ ] Spinal nerve
[ ] Optic nerve
[ ] Auditory nerve
[ ] Olfactory nerve
9. Which nerve takes signals from the eye to the brain?
[ ] Spinal nerve
[ ] Optic nerve
[ ] Auditory nerve
[ ] Olfactory nerve
10. How can you look after your ears?
[ ] By not listening too often to very loud music
[ ] By never putting anything in your ear
[ ] By wearing ear protectors around loud machinery
[ ] All of the above
Science: Elementary School: Grades 3, 4 and 5 Quiz - Eyes and Ears (Answers)
1. What does the eye respond to?
[ ] Colour
[ ] Shape
[x] Light
[ ] Movement
Although our eyes allow us to see color, shape and movement, they only respond (react) to light. Try sitting in a dark room before looking at your pupils in a mirror - notice the way your pupils react to changing levels of light
2. The ear has two main functions - one is to hear but what is the other?
[ ] To sense changes in the weather
[x] To sense changes in position
[ ] To sense changes in temperature
[ ] To regulate hormones
Being filled with fluid, the ear can detect any movement we make, therefore helping us to balance - the skin detects changes in temperature, while we use several senses together in order to detect changes in the weather
3. Which of the following protects the eye?
[ ] The cornea
[ ] The retina
[ ] The iris
[x] The eyelids
The eyelids, as their name suggests, are protective lids, or covers, for the eyes
4. Sound waves cause which three small bones in the ear to vibrate?
[x] Ossicles
[ ] Follicles
[ ] Ampullae
[ ] Cochlea
The ossicles are the smallest bones in the human body
5. Which is the colored part of the eye?
[ ] The cornea
[ ] The pupil
[x] The iris
[ ] The retina
The color of the iris is what we mean when we say someone has brown or blue or green eyes. Although it looks black, the pupil has no color, because it is a hole
6. Sound waves travel down the ear canal before hitting what?
[ ] The pinna
[ ] The inner ear
[ ] The ear lobes
[x] The ear drum
The ear drum vibrates when it is hit by sound waves - these vibrations then cause the ossicles to vibrate
7. The lens focuses images onto what at the back of the eye?
[x] The retina
[ ] The pupil
[ ] Eyelashes
[ ] The cornea
The retina is a group of cells that are sensitive to light. They send messages along the optic nerve to the brain, which forms an image
8. Which nerve takes signals from the ear to the brain?
[ ] Spinal nerve
[ ] Optic nerve
[x] Auditory nerve
[ ] Olfactory nerve
Auditory means 'related to hearing'
9. Which nerve takes signals from the eye to the brain?
[ ] Spinal nerve
[x] Optic nerve
[ ] Auditory nerve
[ ] Olfactory nerve
Optic means 'related to vision'
10. How can you look after your ears?
[ ] By not listening too often to very loud music
[ ] By never putting anything in your ear
[ ] By wearing ear protectors around loud machinery
[x] All of the above
If you look after your ears you should always be able to hear