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It's a physical change. A chemical change is when a new substance is formed. A physical change is when something looks, feels, tastes, or smells different, but it's the same substance. You see the firefly is always glowing, it's just the fact that the human eye cannot see it because it is being over powered by the light of the Sun; but it's still the same firefly.
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Three examples of chemiluminescence?
Glows sticks are a common type of chemiluminescent. When the glass vial of hydrogen peroxide reacts with the phenyl oxalate ester (oxidizing it), a glow is produced; the color based on the fluorescent dye also in the stick. Another example is luminol, which is used in crime scene investigation do detect blood (the chemical reacts with iron in the hemoglobin). In nature, the glow from fireflies is another example of chemiluminescence.
What is fragment of rock ice or metal that glows as it collides atmosphere?
meteor.
What is the difference between led and halogen lights?
Halogen light glows and LED is dull.
What element glows a pale peach color when an electrical current goes through it?
Helium
Describe the energy transformations that take place when a battery is connected to a light bulb in a series circuit?
The battery connected to the bulb has the potential chemical energy in it when it is connected by means of wire to the bulb the chemical energy in the battery is converted to the electrical energy which flows through the wire to the bulb glows the bulb which is a form of light energy after some time the bulb starts emitting heat which is heat energy.
Is heating tungsten until it glows red a chemical or physical change?
Heating tungsten until it glows red is a physical change because the composition of the tungsten does not change. The change in color is a result of the increased temperature causing the atoms to vibrate and emit visible light.
What makes a firefly golow?
It glows because of the darkness...
If a metal bar glowed red hot in a fire would it be a chemical change?
Yes, the metal bar undergoing a color change due to heating in a fire is a physical change, not a chemical change. Chemical changes involve the formation of new substances with different chemical properties. Heating a metal bar until it glows red hot does not alter its chemical composition.
Is white phosphorus that glows when exposed to air a chemical change or a physical change?
White phosphorus is a very reactive chemical because of its structure. When it is heated some, it can react with oxygen to create phosphorus pentoxide (it is in this exothermic reaction that you see the glow). So it is indeed a chemical change.
Is there an animal that is about 3 inches or bigger that glows and flies real fast?
This would be a firefly :)
Is it the male or female firefly that glows in the dark?
Both glow. but male fireflies would glow brighter as they have 2 'bulbs' while female fireflies only have 1
Is the glowing of a platinum wire in a flame a physical or chemical change?
It is a physical change. A physical change involves changing a substance only in its appearance, smell, taste, feel, or sound. A chemical change involves changing what makes up the substance or the way the substance reacts with other substances. When a normal platinum wire is placed over a flame, it glows. This is a physical change because the things that make up the platinum have not been changed, but the appearance has changed.
Is a filament of a light bulb glows when an electric current flows through it is a chemical change?
It is a physical change brought about by the exitation of molecules producing heat and light. A general rule of thumb is that a physical change can be repeated on an article and chemical change cannot. Remove the current from a filament and it is still a filament.
How can water glow like neon lights?
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.
Is heating a chocolate chemical change?
Yes, burning of a sparkle is a chemical change because once sparkle has changed its form it cannot come into its previous form. For understanding you can also take the example of cooked rice which once cooked cannot be raw again.
White phosphorous glows in the dark is it a chemical properties or physical?
This is a physical property because it describes a characteristic that can be observed without changing the composition of the substance. The ability of white phosphorus to glow in the dark is due to its property of emitting light when exposed to oxygen.
What makes a fireflighter glow in the dark?
First of all, you need to say what a fireflighter is, but I think it glows by chemicals in the body (if you mean a firefly) and they are signaling for a mate. Hope that helps you!
