invisible ink

Invisible Ink Messages

Create and discover surprise messages between family members and friends – with your invisible ink Messages!

This is surprisingly a quick activity. Using water colours makes it quick to set up and quick to dry. Water colours are a favourite in our household for painting because of that reason.

Here’s what you will need:

  • Card paper
  • A candle
  • Water
  • Small tipped paint brush
  • Water colour paint set


STEP 1: Start by writing out your message with a candle, onto a piece of card paper.

STEP 2: Dampen the water colour set.

STEP 3: Lastly, paint over the piece of card paper to reveal the hidden message from the invisible ink.

Water colours are a personal favourite of mine because kids can still be painting but the clean up takes seconds and it dries for easy storage.

This activity would work really well if you were trying to keep a hidden treasure map or for letters between kids.

We used this activity to try both Easter and Christmas art pieces.

To challenge your child further in this activity, check correct pincer grip for pre-schoolers and have them write a letter to a friend and send it in the mail. Free writing needs to be encouraged by parents first. Writing without fearing letters or shapes haven’t been drawn incorrectly. Make sure to use lots of praise. Making writing fun will support their practice and self-efficacy.

Would you like to try more DIY Kids craft ideas?

Written By Sarah Courtney

Master of Education, Cognitive Psychology & Learning Practices.