How do our ears help us to hear?

To continue our learning on sound, we explored how our ears help us to hear. We considered how the shapes and sizes of our ears result in varied hearing abilities in humans and a range of animals. For example, dogs have large pinnae (the outside of the ear) which they can move. This means that not only can their ears collect more sound but they can move to face the sound source.

To explore this further, we made 3 different sized cones and used them to listen to a constant sound. The cones acted as funnels, collecting and amplifying the sound. We found the bigger the cone, the louder and more defined the sound was.

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