Yesterday we had Julie in to talk to us about hearing and decibels. We learnt all about our ears and what they are made of (outer, middle and inner) and the safe level of decibels for hearing, which is 85db. Normal conversation is usually at 70-80 decibels, tractors and motorbikes were at 110 decibels.
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Next we learnt about the 18,000 hairs we have that help us feel the vibrations. We experimented with pipe cleaners and moved our hands across them to replicate how the vibrations affect the hairs. When we hear loud noises the vibrations are faster and this can cause damage.
Lastly we learnt about the strategies we can use to protect our ears and hearing; walk away, protect your ears, turn it down.
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