Term
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Definition
| What is the term for the vibration and movement of air? |
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Term
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Definition
| What device enables us to see sound waves? |
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Term
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Definition
| Why do ears have a cupped shape? |
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Term
| Better ability to LOCATE the source of sound |
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Definition
| They made fun of Dumbo's big ears, but what advantage might there be to having bigger ears? |
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Term
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Definition
| Does sound travel further through a metal pipe or through air? |
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Term
| They turn sound waves into pictures that help them guide the submarine correctly |
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Definition
| What do submarines do with sound waves in order to navigate? |
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Term
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Definition
| What is the term for a sound that has been reflected? |
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Term
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Definition
| An incoming sound wave makes your ear drum do what? |
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Term
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Definition
| What part of your body interprets sounds that your ears hear? |
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Term
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Definition
| The higher the frequency of a wave (which means the more waves per second), the higher the ___________ |
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Term
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Definition
| A lower pitched sound is caused by ___________ waves per second? |
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Term
| It needs air molecules to pass along vibrations. This is why there is no sound in space -- because there is no air. |
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Definition
| Why does a sound wave need air? |
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Term
| 7! Just seven! You can remember this easily because the notes are A, B, C, D, E, F, G. |
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Definition
| All music in the world is formed from just this number of basic notes. |
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Term
| 20.0 to 20,000.0 frequency |
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Definition
| Humans can hear what frequency range of sounds? |
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Term
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Definition
| Sounds below 20 frequency are called this, and can only be heard by some animals, such as goldfish. |
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Term
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Definition
| Sounds above 20,000 frequency can not be heard by humans and are called this. Only some creatures, like bats and whales can hear sound at these high frequencies. |
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Term
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Definition
| Ultrasound is used to see where babies are in expectant mothers. The position of the baby is detected when the sound _________ ________ of it. |
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Term
| The key causes a string inside the piano to vibrate, and that is what produces the sound |
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Definition
| When you strike a key on a piano (not an electronic keyboard, but a real piano), what makes the musical note? |
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Term
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Definition
| When you speak what is it that actually vibrates to create the sound of your voice? |
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Term
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Definition
| What is the name of the transparent area in front of the eye that allows light to enter it? |
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Term
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Definition
| What is the term for the colored part of the eye located behind the cornea? It is a ring of muscles that contracts or relaxes in response to light, which causes the pupil to change size. |
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Term
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Definition
| What is the term for the opening in the middle of the iris that controls the amount of light entering the eye? |
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Term
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Definition
| What is the term for the part of the eye that is a clear, flexible structure that light passes through? |
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Term
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Definition
| What is the term for the area of receptor cells in the back of the eye which is the part of the eye that the lens focuses light onto? |
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Term
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Definition
| There are two kinds of receptor cells in the retina. What are they? |
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Term
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Definition
| Which type of receptor cells detect the presence or absence of light? |
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Term
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Definition
| Which type of receptor cells function well only in bright light and make it possible for you to see color? |
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Term
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Definition
| What is made up of special nerve cells that are connected to the rods and cones? |
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Term
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Definition
| Messages from the rods and cones travel along the optic nerve, and are interpreted by the sight center of the __________. |
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Term
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Definition
| Which part of the ear receives sound waves and passes them along to the middle ear? |
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Term
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Definition
| Through what structure do sound waves pass when traveling between the outer ear and the eardrum? |
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Term
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Definition
| What do sound waves come to after traveling through the ear canal? |
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Term
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Definition
| What is the term for the membrane stretched across the inner opening of the ear canal? |
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Term
| The middle ear, which is made up of three tiny bones called the hammer, the anvil and the stirrup |
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Definition
| Sounds waves are very weak until they reach what part of the ear? |
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Term
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Definition
| Which bone in the middle ear picks up sound vibrations from the ear drum and passes them on to the anvil? |
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Term
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Definition
| Which part bone in the middle ear transfers vibrations to the stirrup? |
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Term
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Definition
| What is the term for the snail-shaped, fluid-filled structure in the inner ear? |
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Term
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Definition
| Fluid in the cochlea vibrates, transferring its vibration to some of the hair cells within the cochlea. These hair cells trigger nerve cells that send messages to the brain. When the brain receives a message, what happens? |
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Term
| Because each length of hair responds to the sound of a different frequency. |
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Definition
| Why do the projecting hairs in the cochlea all have different lengths? |
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Term
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Definition
| Which set of projecting hairs in the cochlea get stimulated by the vibrating fluid in the cochlea determine what quality of the sound you hear? |
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Term
| Possibly, but the sound would be weak because the middle ear is what strengthens sound waves so messages can be sent to the brain |
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Definition
| Could a person hear if the bones in the inner ear did not vibrate? Why? |
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Term
| Because the middle ear picks up the sound from the eardrum, and if the eardrum does not produce vibration, the middle ear can't send the message through to the inner ear and on to your brain for interpretation |
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Definition
| Why can a broken eardrum cause hearing problems? |
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Term
| The eardrum, the hammer, the anvil, the stirrup, oval window, cochlea, hair cells which stimulate nerves that send messages to the brain |
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Definition
| What is the sequence of structures that sound waves travel through within the ear that make it possible to hear sounds? List them in the correct order. |
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Term
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Definition
| What is the organ that is used to taste? |
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Term
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Definition
| There are several thousand receptors on the surface of the tongue. What are they called? |
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Term
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Definition
| What is the term for the digestive liquid released in the mouth, in which the part of the food that carries the flavor must be dissolved in order for you to taste it? |
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Term
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Definition
| What do we call the openings in the taste buds, into which food enters as it dissolves in the mouth? |
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Term
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Definition
| These are below the taste pores. They send signals to the brain's taste center, the place where tastes are identified. |
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Term
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Definition
| There are four basic tastes that the tongue can recognize. Located on the tip of the tongue are the taste buds for this type of flavor. What is it? |
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Term
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Definition
| Located on the front sides of the tongue are the taste buds for foods that taste like this. |
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Term
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Definition
| Taste buds for foods that taste like this are located on the back sides of the tongue. |
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Term
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Definition
| Tastebuds for substances that have this taste are located near the back of the tongue. |
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Term
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Definition
| Because air enters the nose and goes into the back of the throat, making it possible for us to taste a very strong odor that we inhale, what sense is most closely linked with our sense of taste? |
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Term
| electromagnetic radiation |
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Definition
| What do we call the wavelength of energy that we see? |
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Term
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Definition
| transparent tissue covering the front of the eye |
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Term
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Definition
| made up of circular bands of muscles that control the size of the pupil |
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Term
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Definition
| transparent tissue that bends light passing through the eye |
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Term
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Definition
| the hole in the center of the eye that light passes through |
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Term
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Definition
| photoreceptors that are responsive even in low light conditions |
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Term
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Definition
| photoreceptors that are responsive to color and in bright conditions |
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Term
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Definition
| What happens when the Eustachian Tubes try to equalize air pressure? |
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Term
| they are receptors that respond to particular chemicals |
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Definition
| What role hairs play in the sense of smell? |
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Term
| Because the congestion in the nasal passages means smells cannot reach the olfactory receptors |
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Definition
| Why does having a cold affect your sense of smell? |
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Term
| a smelly chemical called mercaptan |
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Definition
| Because breathing in too much gas can be deadly, and gas explosions can be disastrous, suppliers of natural gas have added what to gas? |
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Term
| When light comes through the pupil and splashes inside your eye on the retina, the optic nerve carries information about the light to the brain. |
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Definition
| What happens when waves of light enter your eye? Discuss the role of the pupil, the retina, and the optic nerve in your answer. |
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Term
| rods and cones are located in the retina tissue |
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Definition
| Where are rods and cones found? |
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Term
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Definition
| What is the term for the cells in the retina that enable you to see black and white? |
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Term
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Definition
| What is the term for the special cells in the retina that enable you to see color? |
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Term
| cones are concentrated around the center of the retina, while rods are at the edges |
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Definition
| Where are rods and cones concentrated within the retina tissue? |
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Term
| where the optic nerve is formed at the back of the eye; there are no light sensitive rods or cones to respond to light at this point. |
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Definition
| What causes the healthy eye to have a "blind spot" ? |
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Term
| They have cones for colors that humans do not have, so they can see certain colors that humans can not see. |
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Definition
| Why do certain animals like owls and bees see colors differently than humans? |
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Term
| About as big as a ping pong ball |
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Definition
| How big is an average human eye? |
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Term
| Blinking of the eyelid is what keeps your eye clean. |
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Definition
| What is the purpose of the eyelid and blinking? |
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Term
| Eyelashes work with eyelids to keep dirt and other unwanted stuff out of your eyes. |
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Definition
| What is the purpose of eyelashes? Why do we have them? |
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Term
| The pupil gets wider when you enter a dark room, to allow as much available light in as possible. |
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Definition
| What happens to the pupil when you enter a dark room? |
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Term
| The pupil will get smaller, to limit the amount of light that gets in. |
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Definition
| What happens to the pupil when you enter a bright room or go outside in bright sunlight? |
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Term
| The lens focuses light on the retina. The image is upside down, but the brain automatically interprets the image so it appears right side up to us. |
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Definition
| Once light enters through the pupil, what part of the eye focuses light on the retina? How is the image oriented on the retina? How does the brain perceive this? |
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