歡迎閱讀《週日科學版》！我們每週日都要為你介紹可以在家中進行的有趣科學實驗。你可以在《科學日誌》中 記錄自己做了哪些活動，這樣就可以將所學的紀錄下來，比較這些結果，也許還可以利用它們來設計新的實驗！先看一下《科學日誌》的點子再開始吧。展開實驗之前，記得要獲得大人許可喔！
Condensation 凝結作用
This week's experiment explains one of those things that you might have noticed, but never really thought about why it happens. In this experiment we are mainly concerned with what happens on the outside of the glass. However as with all science experiments, keep your eyes open for other effects too.
What you will need:
PHOTO: CATHERINE THOMAS, TAIPEI TIMES
Four glasses (jars will work too)
Ice cubes
Water
★ Take one glass and place it on the worktop. This is your control glass. Observe the glass for 30 seconds. Note any changes you see in your Science Journal.
★ Fill one glass three-quarters full of very warm tap water. Observe the glass for 30 seconds. Note any changes you see in your Science Journal.
★ Fill another glass three-quarters full of tepid tap water. Observe the glass for 30 seconds.
★ Fill another glass three-quarters full of iced water. Observe the glass for 30 seconds.
★ If your experiment doesn't seem to work, you may have a dehumidifier running. Try the experiment again outside.(CATHERINE THOMAS, STAFF WRITER)
本週的實驗可以解釋一個你平常可能會發現，但卻沒有認真想過原理的事；在這個實驗中，我們主要想了解的是「玻璃外發生了什麼事」，然而，就像其他所有的科學實驗一樣，眼睛張大點你也許就會發現其他的結果。
所需材料︰
四個玻璃杯（罐子也行）
冰塊
水
★ 放一個杯子在你的工作檯上，這是你的對照組，觀察這個杯子三十秒，將你觀察到的任何變化紀錄在《科學日誌》中。
★ 將一個杯子中裝四分之三杯有點熱的溫水，觀察這個杯子三十秒，將你觀察到的任何變化紀錄在《科學日誌》中。
★ 將另一個杯子裝四分之三杯微溫的自來水，觀察三十秒。
★ 將另一個杯子裝四分之三杯的冰水，觀察三十秒。
★ 如果你的實驗不太成功，你可以打開除濕機，試著到戶外再實驗一次。（翻譯：袁星塵）
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