That would be a chemical change because the firefly produces a bio-luminescent chemical. This chemical produces light which you see when the fire fly lights up!
A firefly is an example of an object that produces its own light. The sun is another.
You will because a boy firefly light ups while the girl wont light up
the neck of the firefly is a little bit blue.
The difference is in the size of the wavelength blue is smaller than red.
Some dinoflagellates give off light. A chemical reaction in the cells produces light similar light produced by a firefly. water filled with these dinoflagellates glows like a twinkling neon light.
black
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Some dinoflagellates give off light. A chemical reaction in the cells produces light similar light produced by a firefly. water filled with these dinoflagellates glows like a twinkling neon light.
Firefly or glowfly
Firefly
A firefly!