Explore how heat affects the density of air by building and flying a hot air balloon using large plastic bags and the hot air from an electric hairdryer.

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Concepts

gases, lift, molecules, properties of gases, density

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Additional Tags

density of air, expansion of molecules, pbs, pbs kids, properties of gas

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Classroom Considerations

Knovation Readability Score: 1 (1 low difficulty, 5 high difficulty)

View 770 other resources for Pre-K - 1st Grade Physical Science