In this experiment, we will make our own invisible ink that no one can read if you don’t know the secret trick! Let your kids write a secret message, their Christmas present wish list, or just let them draw something on paper. Make sure that they use enough lemon on their message, otherwise, it will be lost.
Remember to start the experiment with a hypothesis, what do you think will happen?
You can also make invisible ink with other ingredients like milk.
Instead of “baking” the paper in the oven, you can iron the paper.
To see others do the experiment look at this video:
Click the link to get to my Kids Christmas Calendar for more experiments.
Do you have any questions or comments about the experiment? Just leave a comment below!