character: Billy the Balloon
topic: States of Matter
grade: 3
subject: Science
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character: Bill Nye the Science Guy
topic: Properties of Solids, Liquids, and Gases
grade: 3
subject: Science
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character: Fizzy the Fizzy Drink
topic: Phase Changes in Matter
grade: 3
subject: Science
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character: Sandy the Sandcastle
topic: Understanding Solids
grade: 3
subject: Science
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