For science we’ve been learning about sound. First I learnt how sound travels. Sound travels in tiny particles in the air you can’t see the particle because it’s that small. A good way to see the sound involves a tuning fork and a bowl of water. You hit the tuning fork on the table and put it into the water then you should be able to see the water splash up around it.
After that I learnt about the parts of the ear. There are three main parts the outer ear, the middle ear, and the inner ear. The outer ear is the part of skin you see on everyone’s ear this is called the pina. The pina is a bit like a funnel it funnels the sound into your ear and that’s why it’s shaped that way. Next is the middle ear this is more like a tube that leads to the ear drum the ear drum is called the ear drum because it looks like a drum. The inner is way more complex than the middle ear because this is where the sound goes to your brain. After the sound hits the ear drum it moves the three bones the hammer, anvil and the stirrup the stirrup then leads to the cochlea the sound travels though the cochlea to the nerve that leads to the brain.
For the last lesson we learnt how sound is made we learnt that sound is caused by vibrations that why if you play a guitar you see the strings vibrate the same works with a piano a hammer like things come down once you press a key and hits a string causing it to vibrate. The pitch on a string gets higher because of tension a higher tension equals having a higher pitched sound and a lower tension equals having a lower pitched sound. This rule also applies for the length of a string the shorter the string the higher the pitch the longer the string the low the sound.