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Four bottle caps sugar and one cap dries yeast
The fourth figure on the left in the picture.
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beginning
Yeast, sugar and water has not dissolved completely, and there is no change in the balloon.
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Five minutes later
In the bottle the yeast, the sugar and the water dissolve, the balloon blows up slightly. (discovery! After shaking the thermos, the balloon can blow up is bigger, I believe it should be some kind of gas produced, and caused the balloon to blow up)
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Ten minutes later
The balloon did not change significantly, but it produced a yellow bubble on the top of the solution (The appearance looks a little like the soybean milk, once I had thought sold it, hey hey...)
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One hour later
The balloon is slightly larger, and yellow bubble gradually increased.
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Two hours later
The balloon muster greater and yellow bubbles rise significantly, (...a little scary...).
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Twenty-four hours later
The bubble has already disappeared, but it leaves the trace on the bottle surface, the balloon heaves greater. (The limit that balloon has seemed to get, has had the tendency to blow up all)
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Forty-eight hours later
The balloon gradually becomes smaller, and the material solution sediments in the bottom, water has become clear.
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Seventy-two hours later
The solution in the bottle is even clearer, but the balloon is shrunken and deflated into the bottle.
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N hours later
Balloon in the bottle gradually becomes larger, the solution almost becomes water, and sediments become condensate on the bottom.
