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The small bit of water inside the kernel turns to steam, which rapidly expands, causing the material to burst into the popped kernel. So the expansion and bursting is physical. But the heat does perform some chemical changes as well.
Juliet Olson
Wiki User
∙ 8y agoActually, it is a physical change, not a chemical one. The expanding moisture inside the kernel builds up pressure until the popcorn explodes, causing the starches inside to expand rapidly. But their chemistry doesn't change. Theoretically you could compress the starches back down to the size of the original kernel. The outer coating gets shattered when the popcorn pops, but that's still a physical change, just like tearing a piece a paper: it can't be undone, but the chemistry hasn't changed.
Anonymous
Physical because the water inside the corn kernel has steam in it and you can change steam into water,
Anonymous
Both
Anonymous
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What are two physical properties and two chemical properties of a bag of microwave popcorn before popping and after?
Physical properties of a bag of microwaveable popcorn are the mass of it, the color of it, the size of it, and the weight of it. Two chemical properties of a bag of microwavable popcorn are it changed from seeds to popcorn and it popped.
Is popping pocorn a chemical change?
yeah, because you can't make the popcorn seeds again.
Is detonation of a physical or chemical change?
could be either. for example, vinegar and baking soda is chemical. overfilled balloon popping is physical. it depends on what detonation you are talking about
Is reacting a physical change or chemical change?
Chemical change
When popcorn is burned why is that a chemical change?
Burning (of popcorn or anything else) is a process by which various chemicals combine with oxygen in an energetic manner, which obviously is a chemical change.
Is popping popcorn a physical?
Chemical change
Is making popcorn a physical or a chemical change?
The act of popcorn popping is a physical rather than chemical change. Air within the popcorn seed is heated, causing it to build up to higher pressure than the air outside. As a result of this, the air is explosively released to the area of lower pressure, in effect popping the popcorn.
Is a balloon popping a physical or chemical?
physical change
Is mixing popcorn steam a physical or chemical change?
it is a chemical change
What are two physical properties and two chemical properties of a bag of microwave popcorn before popping and after?
Physical properties of a bag of microwaveable popcorn are the mass of it, the color of it, the size of it, and the weight of it. Two chemical properties of a bag of microwavable popcorn are it changed from seeds to popcorn and it popped.
Is melting butter for popcorn a chemical or physical?
physical change
Is mealting butter from popcorn chemical or physical?
It is a physical change.
Is popping pocorn a chemical change?
yeah, because you can't make the popcorn seeds again.
Is popcorn popping physical or chemical?
Chemical - a physical change can be reversed , e.g Freezing water, melting chocolate. But something like popping corn is ireversible like baking a cake or boiling a egg. Hope this helps.
A skillet is lined with a thin layer of cooking oil followed by a layer of un-popped popcorn kernels upon heating the kernels all pop thereby escaping the skillet identify physical or chemical Chan?
It would be a chemical change because you can't reverse your action of popping the kernels , which can define a chemical change.
Is detonation of a physical or chemical change?
could be either. for example, vinegar and baking soda is chemical. overfilled balloon popping is physical. it depends on what detonation you are talking about
Why is popping popcorn a physical change?
Once you make it....you won't get that small seed back where as water can Evaporate and then Condense again, which is a Physical Change...so that is why popcorn is a Chemical Change
