Solar Energy and Water

Solar Power (1)

This quick experiment seemed like a good way to illustrate the power of the sun for Travis, especially as he learns about how solar energy can power homes and more. Unfortunately our results weren’t spectacular, but perhaps you’ll have a more clear-cut outcome!

Set two cups of water on 2 pieces of paper, one white, and one black, somewhere that receives direct sunlight. Theoretically, the water on the black paper should warm up more quickly, as the black absorbs the sun’s heat, while the white reflects it.

Travis helped test this in two ways.

First, we tried ice cubes, expecting the one on the black paper’s water to melt faster.

Solar Power (2)

But oh no, our ice cubes might not have been the same size, because the white side melted more quickly!

Solar Power (3)

Next we tried a thermometer. We left the two cups of water to heat up in the sun for a few hours, then headed out with a thermometer to check.

Again, sadly, the results weren’t very pronounced. The black water might have been a degree or two warmer, but on our small dial, that was hard for Travis to appreciate.

Solar Power (4)

Either way, at least the experiment got him thinking, and he got a dose of science and a little sunshine in the morning!

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