Invisible Ink Activity Message

steam activity for kids in 2020 with invisible ink activity

Code Secret Messages With Invisible Ink Activity

Do you wonder how secret agents communicate their secret messages?

They use an invisible ink technique. We are going to learn this easy steam activity of invisible ink through simple steps.

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.

Wahoo !! Great fun stays at home !! Cool way to learn steam activity in 2020.

This invisible ink activity takes only a few minutes and some household objects. So, what secret message you would like your family and friends to decode?

Comment below before starting !!

Let’s look into the: Procedure on How To Make Invisible Ink With Lemon Juice

Materials you’ll need for this easy STEAM Activity :

invisible ink steam activity in 2020 

  •       Half-cut lemon or 1 tablespoon of lemon juice
  •       ½ teaspoon of water
  •       Spoon
  •        A small bowl or a cup
  •       Cotton bud or small paintbrush
  •       White paper
  •       Heat source; clothing iron or light bulb

Easy and Best Method for Invisible Ink Activity

  1. Squeeze the lemon juice into a small bowl.
  2.  Add the water and stir the mixture with a spoon.
  3.  Soak the cotton bud into the mixture and write the message you want to code onto the white paper.
  4. Wait for the juice to dry so that the message can disappear.  
  5. 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.

Note: You can use this trick with other citric acids like vinegar, orange juice, milk, and wine.

Yeah !! You are Done 🙂

What’s going on with your invisible ink message?

This cool science STEAM activity will reveal the laws of chemistry.

Learn more about such coding activities too:

As soon as paper started to get heat up you can see your message appearing like magic but wait it’s not magic, it is a chemistry that can be explained.

So, how does it work?

Lemon juice is a composition of sugar, organic acids, and carbon compounds and diluting it with water makes the solution hard to see on a paper but when you heat the paper, an oxidation reaction occurs, which means carbon compounds present in lemon juice started to get break down and turns light brown and this is how your secret message is revealed. 

We have an extra tip for you- add sugar, lemon juice in one glass of cold water and your lemonade is ready.

Have a break from summer! Try this invisible ink activity soon and let us know the reaction of your prank.

For more such cool and fun STEAM, Activity explore our new ways of learning.

Discover STEAM Activities for kids in 2020 with our STEAM Engineering Challenge, course- An online DIY course for kids and beginners of age 7-11 to learn the scientific concepts by doing hands-on experiments with the supplies available at home.

Science made simple.