Try this DYI speaker and listen to your science and technology effort coming to life in less than an hour!
This great and quick-to-do idea came from KiwiCo. It needs only a few household items, like a cardboard tube (from the kitchen paper towel) and two paper cups and you are ready to watch how sound vibrations travel and can be amplified with the right shape of medium.
First we measured the width and depth of our mobile phone and cut out a slot with these dimensions. Then we held the papercup to the side of the tube and used a pencil to trace the edge of the tube. Did this with both cups. Using scissors or a craft knife (tested them and both working well) cut out the holes we traced.
Make sure that the tube just gets into the cup and the hole is not bigger, otherwise the speaker will not be stable and also you loose the sound. Parents of younger kids should help with this cutting step.
Insert carefully the cardboard tube into the holes of both cups and find the angle for the tube when the cut out slot is facing upright or slightly backwards.
You can also paint, sticker your speaker, but we were inpatient, so tested the music immediately.
Little Bear also tested the speaker as a "phone", shouting to our ears.
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