This Science quiz is called 'Eyes and Ears' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.
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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?
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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
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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
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The eyelids, as their name suggests, are protective lids, or covers, for the eyes
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The ossicles are the smallest bones in the human body
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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
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The ear drum vibrates when it is hit by sound waves - these vibrations then cause the ossicles to vibrate
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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
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Auditory means 'related to hearing'
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Optic means 'related to vision'
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If you look after your ears you should always be able to hear
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