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We have 5 senses. We can hear. We can see. We can smell things. We can taste things. We can feel things we touch. The five senses are hearing, seeing, smelling, tasting, touching.  ....................................... Ears and Hearing Sounds go into my ears. Inside my ear, sounds hit an eardrum. Nerves tell my brain about the sound. My brain tells me what I am hearing. There are three parts to the ear: the outer, the middle and the inner. The outer ear Sounds travel in waves through the air and into our ears. Inside the ears, the sound waves move along short tunnels which are about 25 millimetres long. There is wax in the tunnels which helps keep the ear clean. The sound waves reach a thin layer of skin called the eardrum and it vibrates. The middle ear Behind the eardrum is the middle ear, where there are three tiny bones, the hammer, the anvil and the stirrup. These bones vibrate when the eardrum does. This makes liquid and hairs in the next part of the ear, the inner ear, move. The inner ear The liquid and hairs are in a curled tube called the cochlea (say cock-lee-uh). Messages about the vibrations move along nerves to the brain. The brain tells you what the sound is. As well as hearing, the inner ear helps us keep our balance. The liquid in the inner ear swirls about when you move. Nerves in the inner ear tell your brain which way you are moving, and this helps you to keep your balance. |
