2011年3月30日 星期三

Explaining a process - 2

 You can do a simple experiment to show that black is a better collector of solar energy than white. To begin with, paint the cans-one black, one white. Next, fill the cans with water. Additionally, put the cans in direct sunlight for three hours. Eventually, check the temperature of the water in the cans and compare. To sum up, you can find out that the temperature of the water in the black can is higher.

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