 Welcome back to Kids Fun Science. My name is Ken. Today's experiment is how to make invisible ink message with no heat needed. What you need for this experiment is a bowl of water, a mirror, a pencil, paper, and scissors. So you're going to start off with two pieces of paper. I've already cut them out but you want them to be the same size as your mirror. So you can see I have exactly the same size two pieces of paper and they have to fit on the mirror. Then you take one piece of paper and you dip it into regular tap water and so it just comes out and you just want to shake it off a little bit doesn't have to be you want it wet and then you're going to lay it on top of your mirror so that's why it has to be the size of the mirror. Make sure there's no wrinkles in it that's completely on top of the mirror then take your identical piece of paper that's dry and put it on top of the wet piece on the mirror and from that point is you're going to write out your message to whatever you want it to be for your secret message. So here I'm going to write to you to YouTube and thanks you guys for all your support for over the years I do really appreciate it and and that you know if you like this video make sure you like and share and I appreciate it kids fun science so and a little happy face there for you and so that's going to be my message then you take off the top piece or you can take off both of them take off the top piece that's your message that's not the secret one and then you take off the bottom piece so you have to be careful because the paper is wet and take it off very slowly off the mirror and you can see I just want to show you it's already starting to be a little bit invisible and so there's your message right there you still can see it but the point where it becomes invisible now is you either have to use a hairdryer I put it out in the sun and you can see it's disappeared and you cannot see the message on the piece of paper to be able to reveal the message you're going to re-dip it back into the water now after it's been dried so if you send it to someone and they get it they're able to put it in water and then once it's in water they'll be able to slowly but surely it'll show the the message overall so I did have to put out the sun to re-dry it to be able to see the whole thing you can see it's starting to come up right here you can start seeing the message up here and over time and after I dried it up you were able to see it a lot better and I'll show you shortly so when it first comes out of the water you can see it's starting to show a little bit more as you go and so you can see my entire message and then as it dries out a little bit and you put a darker background you're able to see the whole message so this is a lot drier here and then this is at the end I put out the sun and you can see the entire message right there so this is a really cool experiment I did one another one a little secret message for yourself so you don't know what I'm going to say here I put it in after I've already dried the paper and now I'm going to reveal it and it says thank you very much so I hope you guys enjoyed this video and this experiment and if you did please like and subscribe and to share and thanks for watching