character: Professor Soundwave
topic: Understanding Frequency and Amplitude
grade: 4
subject: Science
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character: Professor Soundwave
topic: Exploring Sound Waves
grade: 4
subject: Science
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character: Professor Soundwave
topic: How Sound Travels
grade: 4
subject: Science
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character: Professor Soundwave
topic: The Science of Music and Sound
grade: 4
subject: Science
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