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Temperature’s effect on molecular speed
溫度對分子速度的影響
In this experiment we’re going to find out if temperature affects the speed of molecules in water.
PHOTO: MICHAEL KEARNEY, TAIPEI TIMES
What you will need:
Six clear glasses
Food coloring
Water (cold, room temperature and hot)
Salt
A spoon
►Fill two glasses with cold water, two with water that is about room temperature and two with very hot water. You can use ice or a freezer to get cold water, but when you’re doing the experiment, none of the water should be frozen. Be careful not to burn yourself with the hot water!
►Put about a teaspoon of salt into three of the glasses (one of each temperature). Stir.
►Wait a few minutes for the water you just stirred to stop moving. It’s important for the next step that the water in each glass is absolutely still.
►Add two drops of food coloring to each of the glasses. Observe the way the food coloring moves through the water.(MICHAEL KEARNEY, STAFF WRITER)
在本實驗中，我們要來查明溫度是否會影響水中分子的速度。
所需材料︰
六個乾淨的玻璃杯
食用色素
水（冰水、溫水和熱水）
鹽
一個湯匙
►裝兩杯冰水、兩杯室溫下的水，和兩杯非常燙的熱水；你可以用冰塊或冰庫製成冰水，但在進行實驗時，不能用結冰的水；用熱水的時候要小心別燙傷自己！
►在三杯水中（三種溫度各一）各加入一茶匙鹽巴，然後攪拌。
►等個幾分鐘，等你剛剛攪拌的水都靜止下來；杯中的水需完全靜止後才能進行下一個步驟。
►在六杯水中都各自加入兩滴食用色素，觀察食用色素在水中運動的情形。（翻譯︰袁星塵）
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