Eric Oblinger's blog

From Pep Rally to Chemistry Lesson: Ping Pong Balls and Liquid Nitrogen

Eric Oblinger | Mon, 11/24/2025 - 00:00

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Want a gas-law demo that students talk about all year? Try launching ping-pong balls with liquid nitrogen. This article shares how a pep-rally idea grew into an explosive, high-engagement lesson—and how the chemistry behind it creates a moment they won’t forget.

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