Switch On, Switch Off (Let's-Read-And-Find-Out Science: Stage 2 (Pb)) (Prebound)
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The switch goes up -- the light goes on,
The switch goes down -- the light goes off.It seems like magic It's not -- it's electricity. But how does a light actually work? In this clear and simple book learn all about electricity, how it's produced, and how it can be used. At the end you'll learn how to conduct fun experiments that will let you generate electricity yourself.