"Switch On, Switch Off (Let's-Read-and-Find-Out Science 2)"
"<h3 align=""center"">The switch goes up -- the light goes on,The switch goes down -- the light goes off.</h3><p align=""left"">It seems like magic! It's not -- it's electricity. But how does a light actually work? In this clea...
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| Format: | Livre |
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HarperCollins
2001
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| Édition: | Reissue |
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