Note: You can use this trick with other citric acids like vinegar, orange juice, milk, and wine. To reveal your secret message, bring the heat source close enough to the paper but make sure paper doesn’t get hot enough that it starts burning.Wait for the juice to dry so that the message can disappear.Soak the cotton bud into the mixture and write the message you want to code onto the white paper.Add the water and stir the mixture with a spoon.Squeeze the lemon juice into a small bowl.Heat source clothing iron or light bulbĮasy and Best Method for Invisible Ink Activity.Half-cut lemon or 1 tablespoon of lemon juice.Materials you’ll need for this easy STEAM Activity :

So, what secret message you would like your family and friends to decode?Ĭomment below before starting !! Let’s look into the: Procedure on How To Make Invisible Ink With Lemon Juice This invisible ink activity takes only a few minutes and some household objects. Wahoo !! Great fun stays at home !! Cool way to learn steam activity in 2020. This lemon juice invisible ink activity will allow you to hide your top-secret messages from others and you can pretend that you are a spy. We are going to learn this easy steam activity of invisible ink through simple steps.

Code Secret Messages With Invisible Ink Activityĭo you wonder how secret agents communicate their secret messages?

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