Think of your ears as ‘sound antennas’.  There’s a reason you have TWO of these – and that’s what this experiment is all about.  You can use any noise maker (an electronic timer with a high pitched beep works very well), a partner, a blindfold (not necessary but more fun if you have one handy), and earplugs (or use your fingers to close the little flap over your ear – don’t stick your fingers IN your ears!).


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