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Science Project: Secret Message Tape

Jan 16, 2013

Do you need to share a secret message with a friend? Are unwanted eyes seeing the notes you pass in class? Use this science trick to keep your secrets secret and learn something about polymers.

Materials:

  • Teflon tape (found at most hardware stores)
  • Sharpie or permanent marker
  • Paper
  • A secret

Procedure:

  1. Cut off a piece of Teflon tape. As long as your message is, size does not matter here.
  2. Place a piece of paper on the table and position the piece of tape on top if it. This is to make sure you don’t mark the surface underneath with permanent ink.
  3. Write your secret on the piece of tape.
  4. Take the tape from the surface and pull the tape from top to bottom. You want to make you message taller, not longer. Make sure to pull slowly and evenly as the tape can break.
  5. Can you read the message? It should be all squished and illegible.
  6. Pass your secret off and tell its recipient to pull the tape long ways. Again, slow and sure as not to rip the tape.
  7. The tape will stretch back to its original shape and the message should be legible, depending on your handwriting.
  8. Happy secret sharing!

How This Works:

Teflon is a polymer, which is a type of molecular alignment where the molecules repeat in a very regular pattern. It usually has a very high number of molecules. The molecules in your Teflon tape look like this:

The Molecular Alignment of Your Teflon TapeThe Molecular Alignment of Your Teflon TapeCourtesy of stevespangler.com

When you pull your secret message taller you’re pulling the molecular strings out of order. The molecules are bound together so they don't break, they just rearrange themselves. The bonds are so strong that when you pull them back the other way, they continue to stay bound and hold the message you wrote.

Have Your Say!

Do you know of other ways to share secret messages? Share your tricks, tips and science in the comment's section below!

 

6 Comments

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Poll secretmessage

Do you pass notes in class?

  • Is that something people do? Pass notes in class?
  • Only with my best friend who sits beside me and only when the teacher isn't looking.
  • I pass them all over class, it's the only way to make class fun!
  • I only send secret message notes that no other person can read besides my friends. I learned how to write them in Science class!

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Abbergrl
Abbergrl posted in Food:
Chinese
reply about 1 hour
XDragonicKingX
"AwesomeAngel" wrote:I dont care what you think! You can go fly a kite!I do not support gays.If some girls want to walk on the street with literally no clothes on, is that fine too?Thats their way of expressing themselves!But then, they are lost anyway, so who cares?It doesnt matter if you are gay or not, if you are not a Christian! THE BIBLE:Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the ######## immoral, nor idolaters, nor adulterers, nor men who practice homosexuality, nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God. And such were some of you. But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.SO FLY A KITE if you think you can be a gay christian. Hmm.....I can't deny what you said....But what I can say is that you shouldn't be that religious! Gays have rights too! They're humans too!
reply about 1 hour
AwesomeAngel
AwesomeAngel posted in Debating:
"XxRuby_PhoenixxX" wrote: "AwesomeAngel" wrote: IDGAF. I do NOT support them. I dont care what you, society or the world says. Why is that? Puttingmydefenceup has even said she doesnt believe the bible. Every professing christian does. So shes not saved! Making fun of God and the Bible, that #######!
reply about 1 hour
AwesomeAngel
AwesomeAngel posted in Debating:
"XxRuby_PhoenixxX" wrote: "AwesomeAngel" wrote: IDGAF. I do NOT support them. I dont care what you, society or the world says. Why is that? Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the ######## immoral, nor idolaters, nor adulterers, nor men who practice homosexuality, nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God. And such were some of you. But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.That is the bible. SO quit your lifestyle and get saved, gays! P.S:Do not bring up the fact that the old testament says u cant have tattoos. It also talks about animal sacrifices. And no christian does that.
reply about 1 hour
AwesomeAngel
AwesomeAngel posted in Debating:
I have said my peace- dont care what you United Church members think.
reply about 2 hours