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氣球科學教學

氣球科學教學. 99.5.14 生活科學. 拉氣球. 氣球內空氣分子運動產生溫度迅速變冷變熱. 拉氣球後,來練習用硬幣「切」氣球. 切氣球─應力原理. 剪刀也是應力原理. 感謝祐宗老師熱情贊助氦氣瓶. 氦氣也就是「笑氣」會讓人發出唐老鴨聲音. 密度只有空氣十分之一的笑氣使聲帶變緊. 挑戰氣球的彈性限度─用鐵絲刺氣球. 找彈性密度高的部分刺穿. 我們成功刺穿了喔 ( 已經破了好幾顆氣球了 ^^). 蘋果氣球利用大氣壓力的原理. 氣球附著在我們的鼻子上喔!. 手指需挑戰氣體壓力才能做出蘋果造型. 我們的小丑造型很可愛吧!.

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氣球科學教學

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