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Friday, September 15, 2006

How Do Fireflies Glow?




Glow worms (which later become fireflies) glow because of a chemical reaction between complex molecules and oxygen in their bodies. This chemical reaction is very efficient--almost 100% of the energy produced by this reaction is given off as light, which is much more efficient than a lightbulb! Why do they glow? Some scientists think it's a warning sign to predators not to eat them! Imagine a restaurant with a big neon sign that said "BAD FOOD SERVED HERE." It's the same idea.

1 comments:

alilbit said...

i always thought they carried itty bitty flashlights