STEAM Night

✉️ Secret Messages

Write a message that appears like magic. Draft: not yet checked

How it works

Turmeric (a yellow spice) is a color-changer. When it touches something basic like baking soda water, it turns red. So a message you can't see turns into one you can!

What you will do

  1. Dip a swab in the secret ink.
  2. Write on the yellow paper. It turns red.
  3. Or write a message for a friend.
  4. Let it dry flat on your tray.

Try it at home

Ask a grown-up to help.

What you need:

Turmeric, rubbing alcohol, paper, baking soda, water, cotton swabs. The UV version needs a UV flashlight and tonic water.

Safety at home:

Turmeric stains clothes. Rubbing alcohol is flammable: an adult handles it.

Watch how it is done

Two short videos. Tap one to play it.

  1. Now playingWrite Secret Messages With Invisible InkScience Buddies
  2. Now playingMake Your Own Secret InkSciShow Kids

Videos play from YouTube, made by other people.