List down five materials taht produce sound and give their importance.
Materials:
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2.
3.
4.
5.
Importance
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2.
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4.
5.
Materials:
1.
2.
3.
4.
5.
Importance
1.
2.
3.
4.
5.
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Answers & Comments
1. speaker
2. mouths
3. microphone
4. car horn
5. phone ring
1. helps us hear things on our device louder
2. let's us talk and communicate
3. makes our voice louder in a big place/crowd
4.notifies other drivers to look out or to move
5.lets us know when someone is calling us