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| All Units | > | Unit 1 - Sound | > | Investigation 2 - Making and Hearing Sounds | > | Further Investigations |
Further Investigations
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Build a megaphone with paper and use it make your voice louder. Also try it to listen with.
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Use the 'sound frequency grapher' to
look at the mix of different frequencies
that are in different sounds, including the
vowels, older and younger voices, and
various instruments.
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Explore how air can make something vibrate, as it does with the vocal cords. For example, let air out of a balloon. Pinch it tight to make a pure sound. Blow across a soda bottle top.
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