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Why Do the Lights Turn On?
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When you walk into a room and flip a light switch, a lightbulb turns on, illuminating the area. But how does one small switch do such a large job? Why Do the Lights Turn On? enlightens readers about the science behind electricity and circuits through full-color illustrations and photographs.

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About the Author

Barbara J. Davis has written books on science topics for kids for more than 15 years. She has published books on ecosystems and biomes, as well as on earth science subjects.

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Item ships from and is sold by Fishpond World Ltd.
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