Use a balloon filled with carbon dioxide to amplify sound waves
RN: 11011104 - PHYSICS > ACOUSTICS
3 & 4
In a normal situation one will have difficulty hearing a watch tick more than half a metre away, because our ears are separated from the watch by air, which is not a very good conductor of sound. In this science experiment we will be looking which property of materials makes for better conduction of sound:
STUFF YOU NEED [MATERIALS]
- BAKING SODA
- TICKING WATCH
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