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Scientific Tuesdays – Make invisible ink from milk?!

In this episode of Scientific Tuesdays we show how to create a secret message on paper using milk and a simple iron! It doesn’t get any easier than this!

Scientific Tuesdays will be on hiatus for a few weeks while we stat on Season 2 for you! But relax! It will be better than ever! Stay Tuned and see you then! .
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  1. Urska Riedl


  2. Jagjit Singh

    so ugly face

  3. CringeDolan

    this is sooo stupid… check out Product Peeks channel theres a REAL invisible INK 👵

  4. Caden Greenberg


  5. Luffy Ace

    lol our school selling a invisible pen for 5$ iam not joking and i have like 89 of them, iam shocked that u need to do this crap just to make an invisible ink.

  6. Ashuthosh Bharadwaj

    can we use a microwave oven?

  7. Sahida Woadud

    i try this but is not working


    cusdays lol

  9. QOQ QOQ

    How is this goin to be usefull?

  10. Molly Grace Jones

    You can use lemon aswell!

  11. Jia Lin Cao

    we need a MILK PEN

  12. stellflop

    mmmhhh it would be easy just to use my semen and use a uv light

    i joke i joke

  13. Zubair

    if you use this method you can use full fat milk because then it will be more visible

  14. Hector Amador

    you could use other material like lemon juice gor ink and a feather or a dull pencil

  15. cynthia cardoso

    use lemon

  16. Kevin Torries

    I'm pretty sure the wise man said something like "Early to bed, Early to rise; makes a man, healthy, wealthy and wise."

  17. matthew marsh


  18. Taamz Heart


  19. Paper Cranes

    It works with lemon juice too! ☺

  20. Hasan Nadim

    this is rally works

  21. Vault Dweller

    You can do the same with lemon juice

  22. mel batlett

    Haha me to to the top comment

  23. Charlie Eleftheriadis

    Why do u always put your head so close to the camera

  24. Scooter Dash

    hmm but don't write because they can bypass your language its easy if you want with your friend ask the teacher what language she don't know and speak it like Russian French Italian or something like that because on the paper its easy but when you talk your own language its gonna be hard to know what you said and not gonna bust you 😀

  25. LilMrsAnime

    my friend and I did that. Its tough to speak but fun to write xD

  26. Scooter Dash

    haha you can create your own language so the teachers cant read it or trying to discover !!!

  27. Hayden Lawrence

    why does it look like blood
    it scary

  28. ☣PistolSniper☣

    lemon juice does the same thing i think

  29. Raid Baquee

    he said you could use a heat lamp

  30. Norinias Alt

    epic. fail.

  31. Mage

    Lemons…… Also work if your allergic to milk..

  32. Amanda Esau

    I don't hav an iron! I kinda burned a hole thru a white uniform shirt so we trashed it and got a steamer. Much better. And cool video-thought only lemons worked.

  33. Levdoful

    I understand that you can not carry milk,BUT how can you not cary an iron? Oh yeah and last thing if you are very carreful you can do the same with just a matchligh or any fire source

  34. J Patata


  35. marvie_lyn2270


  36. Xhighlander1999

    the thumb looks like a knob

  37. Jas Lee

    Wasted all that milk.

  38. Yasmeen Taher

    this trick got mt counter on fire

  39. jeremiah lacerna

    LOL!!! x) ''milky massages'' 😀

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