character: Wavey the Sound Scientist
topic: Vibrations and Sound Waves
grade: 4
subject: Science
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character: Professor Soundwave
topic: Understanding Frequency and Amplitude
grade: 4
subject: Science
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character: Sonic the Wave Explorer
topic: Types of Sound Waves
grade: 4
subject: Science
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character: Echo the Sound Detective
topic: How Sound Travels
grade: 4
subject: Science
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