The radiation from the microwave helps the popcorn kernels pop because it gives off heat. Inside a kernel there is a little drop of water surrounded by starch and on the outside there is a hard shell. When put in the microwave or any source of heat warming it, the little drop of water turns into water vapor within the kernel. When the water vapor cannot stand to be in the confined space anymore and there is too much pressure, the kernel explodes, making popcorn. The water vapor escapes and that is why there is steam coming out of the bag when you open it.
I got my information from:
I got my picture from:
No comments:
Post a Comment