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機器人：熱氣球是人類最早可以飛在空中的交通工具，熱氣球可以升空的原理是什麼呢？ A、因為裝了噴射引擎 B、因為裡頭充滿了空氣 C、因為風會帶動熱氣球 D、因為熱空氣比冷空氣輕 答案是D，你答對了嗎？我們來看影片的解說。
#科學 #能源 #氣候 #科技 #自然
分級:
片長:
發音:
發行:
導演:
分級: 普遍級
片長: 1 min
發音: 華語
發行: 2018-01
導演: 安偉民
片長: 23 min
發行: 2015-06
導演: 翰星傳播製作
片長: 0 min
片長: 24 min
發行: 2013-01
導演: 導演:瑪拉歐斯
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