Lights day and night : the science of how light works (The science of how)
by Hughes, Susan, 1960- (Author)
"Blink, blink. What's that? A firefly! Such a tiny insect, but its light seems so bright in the darkness. Light is something we take for granted -- especially in the age of electricity. Where does light come from? How does it work? What is it made of? This lyrical picture book answers all of these q... Full description
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