Hey there!!
As you know, we are trying different experiments related to the human body (in fact, to the five senses, actually). Yesterday, it was the turn of our sense of hearing.
What do our ears perceive? What's sound and how does it work? There's a simple and funny way to answer these questions: the musical bottles.
You need six crystal bottles (same shape and size, if it's possible), water and food colouring (this is just optional, kids like the beautiful colours). You have to fill the bottles with water...but be careful: each bottle has to be filled with a little less water than the previous one. So the first one will be almost full and the last one almost empty. Now, if you want to, you can add some food colouring to the water and shake, so each bottle has a different colour. Kids enjoy this part a lot!
Now that the bottles are ready, tap them with a pencil or a spoon and see what happens. Each one has a different sound!! Why is that? Well, the more water, the slower vibrations travel through it and the lower the sound. It's really cool!! Now, you can try and play some simple songs together (we managed to play "Mary Had a Little Lamb" and "Frère Jacques", but the funniest part was when they tried to create their own songs).
Enjoy!!
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As you know, we are trying different experiments related to the human body (in fact, to the five senses, actually). Yesterday, it was the turn of our sense of hearing.
What do our ears perceive? What's sound and how does it work? There's a simple and funny way to answer these questions: the musical bottles.
You need six crystal bottles (same shape and size, if it's possible), water and food colouring (this is just optional, kids like the beautiful colours). You have to fill the bottles with water...but be careful: each bottle has to be filled with a little less water than the previous one. So the first one will be almost full and the last one almost empty. Now, if you want to, you can add some food colouring to the water and shake, so each bottle has a different colour. Kids enjoy this part a lot!
Now that the bottles are ready, tap them with a pencil or a spoon and see what happens. Each one has a different sound!! Why is that? Well, the more water, the slower vibrations travel through it and the lower the sound. It's really cool!! Now, you can try and play some simple songs together (we managed to play "Mary Had a Little Lamb" and "Frère Jacques", but the funniest part was when they tried to create their own songs).
Enjoy!!
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