This DIY project teaches you how to create invisible ink using lemon juice, perfect for secret messages and creative crafts.

Mix the lemon juice and water in a small bowl.
Dip the cotton swab or paintbrush into the mixture.
Write your secret message on the paper using the swab or brush.
Let the paper dry completely.
To reveal the message, hold the paper near a heat source (like a lamp or iron) for a few seconds.

Keywords: Invisible Ink, Lemon Juice, DIY Craft, Secret Messages