Thursday, December 15, 2011

For A Spin

Since we are learning about light in science, we have used a cool little tool called a radiometer. The radiometer spins when you put it somewhere that receives sunlight. It has four little squares on the sides of it. These squares are black on one side, and white on the other. The reason it spins is that the black sides absorb light while the white sides reflect it. It is one of the coolest things we have. In our class, it never moves, but across the hall, where it isn't in the shade, it spins like crazy! See you next time on Science News!

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