Kw-logo-smaller

How Popcorn Pops

Popcorn is a tasty addition to any movie night but it's also an example of some pretty cool science. Check it out!

How Popcorn Pops - The Wet Truth

Although popcorn kernals may look totally dry, each kernel of popcorn actually has a tiny amount of water inside it. This water is stored inside a circle of soft starch inside the kernel's hard outer surface. As the kernel heats up, the water's molecules start to move faster and get farther away from each other; this molecular expansion is the same reason water turns into steam when you boil it. As the water expands it puts pressure against the hard starch. Something's gotta give - so eventually the water pressure wins out and the popcorn ruptures. The soft starch inside becomes inflated and bursts, flipping the kernel inside out to release the steam inside! Mmmm, popcorn!

popping corn on the cobPopping corn on the cobCourtesy of Thompsons Limited
 

Popcorn - Did U Know?

  • Don't freeze popcorn or keep it in the fridge. This dries out your kernels and without moisture there won't be any poppin'.
  • Those kernels you find at the bottom of the bowl that failed to pop are called old maids. They were too dry to have any pop left in them.
  • The English colonists were introduced to popcorn at the first Thanksgiving feast in 1621 when Quadequina, brother of Wampanoag chief Massasoit, brought a deerskin bag of popped popcorn to dinner as a gift.
Related Stories:
7 Comments

latest videos

F992549905093

Where Can You Get the Best Popcorn?

  • At the movie theaters.
  • At home with your own seasoning.
  • At the fair or circus.
  • Microwavable popcorn at video stores.

related stories

Micro_milk flutes - micro
Ring in the New Year eating tasty treats at a sleepover party!
Micro_micro_writing
November is Novel Writing Month where thousands of people write millions of words. It’s a time wh...
One tiny town in America is trying to break a big – and yummy – world record.
What's the deal with those weird squiggly lined pictures at the mall? Are there really hidden pic...

Random in the forums

xSlayx
xSlayx posted in Debating:
I love you in a different language. 
reply 7 minutes
Harmonia
Harmonia posted in Debating:
It's officially proven to be blue and black. 
reply 7 minutes
the_way_to_peace
Ham tose pyaar kariba  :D 
reply 18 minutes
phoenix_Esha123
"GaaraOfTheSand" wrote: Blood Why are you getting so violent? Blood, suicide and all. I mean how is blood even related to sweet? If you think blood is somehow related to sweet, then you are really wierd<br>Are you sad or something? And I am not making fun of you. If you have any problems, sort it out. :) Red
reply 35 minutes
phoenix_Esha123
Mu tumoku bholo paye
reply 41 minutes

play online games