Dangerous Decibels

Today we had a lesson with a lady call Toni about Dangerous Decibels to tech us about what our limits should be and how to our ears safe. A safe decibel is 85 or lower. 90-120 decibels may result in hearing loss, that is suff like lawn mower and loud rock concert. 125 decibels plus pain can begin. 130 decibels can cause instant hearing loss stuff like firecrackers and heavy metal concerts.

We did a lot of testing with a tuning fork. We had to bang it down on the ground then put close to our ear we heard a ringing noise that was the energy that came from the vibration from when we hit it. We also put it on our hand and it almost felt like it stung our hands. Then we did it with a ping pong ball attached to string. This showed that the more you hit the tuning fork on the ground the more energy and the higher the ping pong ball went.

We also learnt that sticking Q tips in your ear can make your ear drum break. Your ear drum is so delicate its like tissue paper. And ear wax is how our ears naturally cleans our ear canals.