有咩實驗about空氣?急~20點

2012-02-10 1:57 am
有咩實驗about空氣

回答 (3)

2012-02-11 2:24 am
用氣球做實驗,,因你將空氣吹入左個氣球度,佢就會膨漲,,但當你將空氣放出嚟,,佢就會周圍飛,,因好似係輕氣球載人,,升上天空一樣,,原理係氣球裡面有空氣有關,,所以你可以試下用膠氣袋做實驗都得既....
2012-02-10 2:05 am
U can test something that about nitrogen,oxygen,carbon dioxide......test for photosynthesis or a glowing splint can or not relight.hope can help you^^
參考: me


收錄日期: 2021-04-13 18:31:23
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