character: Billy Bubbles
topic: Understanding Gas Production in Reactions
grade: 3
subject: Science
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character: Billy Bubbles
topic: What Happens When Vinegar Meets Baking Soda?
grade: 3
subject: Science
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character: Billy Bubbles
topic: Exploring Gas Formation in Everyday Reactions
grade: 3
subject: Science
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character: Billy Bubbles
topic: The Science Behind Fizzing and Bubbling
grade: 3
subject: Science
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