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Here are same amount of water. But their weights are different.
Cold water is heavier than hot water.
Today you can see the difference of weight.
I prepare 4 cups. 2 cups of hot water and 2 cups of cold water. And some color paints
One of each is blue, and the other of each is yellow.
That is to say ,,, the 1st one is cold, blue the 2nd one is cold, yellow, the 3rd one is warm, yellow, the 4th one is warm blue.(a bit confused~~)
Now. You can see which water is heavier.
Tada!!
This one is mixed and turn into yellow green. But that one is not mixed.
Do you know why?
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