character: Bouncy Ben
topic: Understanding materials: rubber vs. foam in sports
grade: 4
subject: Physical Education
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character: Bouncy Ben
topic: Benefits of using different materials in sports equipment
grade: 4
subject: Physical Education
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character: Bouncy Ben
topic: Comparing elasticity and durability of rubber and foam
grade: 4
subject: Physical Education
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character: Bouncy Ben
topic: Impact of material choice on performance in sports
grade: 4
subject: Physical Education
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