DIY Invisible Ink! 

"Start by mechanically separating" *H A M M E R*

Teacher: *You haven't written a single word on your test paper!* Me: *Teacher, my pen is just built different.*

For those of you who don't have bulk Sodium Carbonate in your pantry: You can find a lot of it in special dry laundry additives, like OxiClean White Revive, which is almost completely sodium carbonate. Best household source. Hope this helps! :)

A bank robber put lemon juice on his face because he believed it would make him invisible, so he didn't hide his face

I like this more than my actual chemistry class, probably because he doesn’t give me homework 😂

I watched a single video about the plastic lining inside a coke can, now I’m absolutely hooked on your channel 😂

My grandpa used to show me that I can write a letter with lemon juice using a quil (feather from outside cut at an angle) or a toothpick. Then we would light a candle and very carefully heat the paper and the message would show. Awesome that you can do it with a highlighter!

Him: Using Highlighters and Lemon... Me: Using the og WW1/2 method of pee and ovens...

You can also just use lemon juice to write and when the juice is dried, just put the paper towards a light source and you'll be able to see the writing.

I only watched invisible ink in cartoon but it's now possible 😊🎉🎊

U r loved don’t give up on life

Sp💀rm can also be used as temporary invisible ink. When it dries, it reveals the written text.

Mine fail forgot dry the paper now watching it again on bedroom laziness happening 😅

Drawing a boo with it was so perfect, this channel is great!

thanks for this video! this will really work for like bendy stuff! thanks!

The only good DIY I have seen so far

Your shorts are the only ones I ever watch

The Boo from Mario had me hook line and sinker!

Fun fact: some dumb guy thought by rubbing lemon juice on his face it would make him invisible. He robbed a store or bank (I can't remember what) and was confused when the police found him so quickly.

I really want to try this!!!! So cool!!!!

Finally I can write two pages notes on single page

That's really cool

I remembered invisible link was use as a stamp onto your wrist when you go to Chuckie Cheese and you had to put your wrist under the black light to see your stamp.

Does any color highlighter work? Super cool!

lemon juice was the trick i thought from when i was a kid... (no highlighter ink) we'd write on paper with lemon juice with a Q-tip and then, we heated it over a light bulb to reveal the image as the lemon juice oxidized the paper and turned brown.

Damn. Glow in the dark too!

Wow that’s awesome

For the people who don’t know the ghost in the beginning was a “Boo”from Mario, they are only seen in the mansions or spooky levels in the game.

I love your content, keep it up!!! Very wholesome videos.

Finally, an actual diy glow in the dark paint tutorial.

That’s so cool 😍

Best color ever. So futuristic

Yeah I love it, "mechanically separate"!

THANK GOD I always wanted to buy invisible ink but i couldnt but now i know how to make now i can draw secret words hiding in my book! ALSO THANK YOU FOR TELLING ME HOW TO MAKE ONE THANK YOU!💜💜💜

Cool

That is awesome

Lemon Juice alone is all you need. Heat the dried and invisible juice and it will reappear brownish.

I did it and it turned blue It was very cool

That’s cool & also can be used for coded messages

The only diy glow in the dark liquid that I can actually do

bruh I’m surprised if people couldn’t tell what was written just by the marks on the paper 💀💀

Ah yes, let me just bust out my sodium carbonate

I'm gonna try this out. 😜👍

You just gaved free tutorial to highschool kids that understand English on how to make ultimate cheat sheet during the exams.(only they need is to find a small lamp with black light on it to attach it on the end of the pen subtly).

I remember when we just used lemon juice. Oh I remember when highlighter pens were the cool new thing.

Your drawing of Boo was on point

youre my new scrinkly scrunbo, man

Amazing and wow 👍👍💵💵💶😲😊

A Boo from Mario. Awesome! 😎👌

Nice ! Another acid works too ?

yep im hunna do this with my daughter this afternoon Yellow is her favorite colar we have thepens lemonjuice and both baking powder and baking soda. thanks again 💯🖖⚗️🍎🏆

Thanks now i can put back the "invisible ink" into my pen😂

We used to write with lemon juice and iron the paper to reveal it so the text becomes brown

I once did that at my kindergarten it was cool

someone tried robbing a bank using this method thinking it truly made them invisible.

You can also jus draw on the paper with the lemon juice let it dry and then put it under heat to reveal the message on it

"My last two braincells be like " Nah nah we aint doing that today we ain't doing tha-

I learned this from bill nye

I mechanically separated my neighbor.. no ink in it... what now? 😦

Hey no way, you drew a Boo!!

Thaaankk youu ❤

Ah so this is how the invisible lemon bank robber got the idea from.

For being unable to see relative to where the other parts of the thing you are drawing are, that boo sketch was really good.

It’s perfect for Halloween and Christmas 😅

Just like in National Treasure!

Gravity falls fan trying to make a secret book:

Даже спецэффекты раньше были реальные)))

Wow I could have had one of those cool book fair markers for free? About 10 years late but I could have been the cool kid making tons of money.

you can make some with apple juice, extract the juice, write with it and heat them to show the ink.

After reading Devil In The White City in high school, I’m actually so excited to see this play out in a game

my grandma is asking me where all her lemons went

Bruh, that's cool

I Will Try This Out.

that's cool

That's cool!

Or just use lemon juice on a qtip and draw something. Apply heat and voila

wow my grandparents live on lake max! love to see culver on the internet 😮

Wouldn't you be able to read it from where the paper was wet, then dried..?

You can just use Lemon water and then heat it over a flame to make the text appear

very cool

You can write invisible note with lemon juice and became visible after heating the paper(simple) but it can't be used in Halloween 😅

90s Indian school students used this kind of trick

Easier solution: I just have a clear marker and a marker that turns into a different colour when touching the clear marker.

Pee works as well, I saw it in an episode of locked up lol

This will be useful

Hahahaha...us kids made invisible ink with lemon juice in 1970, show us something new. 😅

Cool. I'm going to take a highlighter, and a lemon.

Cool 😎

WoW 🤩 Sir its cool 😎 In its work

So this is how they made the invisible ink pens 😮

Good to know, I'll keep this in mind for finals

It's like a... ✨GLOW IN THE DARK INK✨

Cocok buat contekan 🗿

Uhmmm this is awesome 😎

Nice post👍👍

Bro I got so jump scared by the ghost saying boo

"Don't believe me? Get a blacklight" "OH wait don't shine it on me"

This is going to be fun. 😁

Fr it gives me gravity falls vibes-

"start by mechanically separating" H A M M E R