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It's not a change at all. It is simply what the firefly does.
But it is a result of a chemical change within the firefly. A chemical reaction involves a transfer of energy. In this case, the energy would go into creating light waves from the molecules in the firefly, causing it to glow.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoYes, catalised by luciferase enzym
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Is giving off light a physical or chemical change?
I would think it to be a Physical Change. Not chemical.
What is a chemical change?
A chemical change is a change in which a substance turns into a completely different substance that can't be reversed. A chemical change often happens when a substance burns (not to be confused with evaporation or melting of a substance), changes colors, a substance spoils or rusts, photosynthesis or respiration, and/or a substance tarnishes.Some examples are a bike rusting, burning bread to make toast, fireworks exploding, milk spoiling, a leaf changing color, mixing eggs and flour for a batter, baking a cake, etc.A chemical change will NOT dissolve, go through a state of matter (sublimation, decomposition, melting, freezing, evaporation, and condensation), breaking or tearing of a substance, and/or anything that can be reversed back.A chemical change is one in which one or more new substances are formed. Simple examples include burning and rusting.
What are the 5 characteristics of chemical change?
During a chemical change the structure of molecules (as chemical composition) is changed. Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
5 examples of science?
Change in temperature, gaseous bubbles, giving off light, change in color, change in properties. These are chemical changes, but it is still five examples of science.
How is baking bread a chemical change?
Yes, yes it is!
Is giving off light a physical or chemical change?
I would think it to be a Physical Change. Not chemical.
When toast is cooked what change occurs physical or chemical?
Chemical, because the disaccharide in toast when heated become hard thus giving you toast
When a firecracker explodes giving off light and heat and breaking the wrapper into many pieces is that a physical change chemical change or both?
both
Pouring milk in you r oatmeal - Physical or chemical?
It would be physical change because the substance doesn't change. Signs of chemical changes would be absorbing, liberating (releasing) heat, fizzing, changes of color,or giving off light.
Fireworks exploding in the sky and giving off light are an example of a(n)?
chemical change
Is triboluminescence a physical or chemical property?
it is an chemical property by giving off the glow. Triboluminescence is an optical phenomenon, consequently is a physical property.
Why is carving wood a physical change?
It is a physical change, because you're giving the wood a new shape.
Is a sponge being compressed a physical or chemical change?
physical change.
How do you know caramelizing sugar is a chemical change?
Sugar is caramelized by heating (together with some proteinous material) giving taste and color change. Since this can NOT be undone (or reverted back to original state) by cooling or other simple physical processes, it is to be chemical.
In a firework show the fireworks explode giving off heat and light is this a chemical change why?
It is a chemical change because the chemical composition is changed during this reaction.
When magnesium is burnt in the air is it a chemical change?
Yes. Magnesium burns in air brightly giving Magnesium oxide, witch is a chemical change.
Is Giving off light a physical change?
Yes, yes it is. LOL
