Why is popping popcorn a physical change?

Answer 1

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

Answer 2

Popcorn popping is just a physical change, which means that the corn just changed its appearance but its still corn.

Popcorn "pops" when a tiny amount of water contained in the kernel is superheated and turns to steam. When enough pressure builds up inside the kernel, it ruptures, and some starch previously contained within the kernel fuses together as it cools to form a fluffy solid.

Because the driving force behind this change is water being converted to steam (a change of state), and nothing chemically new is made, this is a physical change.

Answer 3

the heat speeds up the molecules in the liquid inside the popcorn causing it to expand till the shell can no longer handle the pressure then it pops! originally from a kernel

Answer 4

No, it only heats the water on the inside of the popcorn so that it begins to vaporize and expand, causing it to "pop!"