Invisible ink

Details:

Draw a secret picture with invisible ink.


Things needed:

Materials

  • 1 x Piece of paper
  • 1 x Lemon
  • 1 x Crayon

Tools and equipment

  • Paint brush
  • Knife 

Instructions:

  1. Very carefully slice a lemon in half with a knife.
  2. Squeeze the lemon juice into a small bowl.
  3. Dip the paintbrush into the lemon juice and paint a picture on the piece of paper.
  4. Leave the piece of paper to dry.
  5. Your picture will now be completely invisible.
  6. Rub the side of a wax crayon all over the piece of paper.
  7. Your secret painting will magically appear!

Information:

The lemon juice is an acid, which breaks down the surface of the paper. This change is invisible until you rub a crayon over the surface. 


Further ideas:

Perhaps you could write an invisible note to a friend, and get them to reveal what is written by using their crayon.


Don't forget to share a picture or video of your creation on our Facebook page, we'd love to see it.

Max


Published in the June edition of Dartford Living magazine.