[Ready? We hear many different sounds, everyday All of the sounds that we hear come through our ears in the same way, through the air Do you know why we're able to speak, make sound? When I say ready you all say the word 'vibration', ready? Vi-brat-ion, Vi-brat-ion My voice is caused by vibrations too All sounds are caused by vibration All sounds are caused by vibration All sounds are caused by vibration Did you feel the vibration? Now let's see if we can recognise some sounds The sound of an electric mixer is a familiar sound to most of us.] [I mean never underestimate it's power] [Listen to this worksaw We've seen that when a tuning fork is struck, it vibrates.] [Suppose you're taken by surprise, and while we're supposing let's go all the way.] [Do you remember makes this sound?] [I'll have this gizmo fixed in a second] [??????????something easy??????] [If he turns it slowly, he doesn't bother anyone.] [????????????uses] [Well I've got the idea across] [You see, there's all kinds of rhythm around us, if you listen for it.] [We saw a lot of this, and some of this.] [And that's the most important thing we've learnt today.] [Think about what we've learned about sound.]