Secret Messages With Invisible Ink
October 20, 2022
Have you ever wanted to send your friend a secret message that no-one else can read? How about invisible ink, a special type of ink that you can use for writing and that does not show up on paper. Only after a special treatment will it appear again magically, and the message can be read. How does this work? Find out in this activity and write your own secret messages!
3 cups or small bowls
Q-tips or a brush
Old newspaper or cardboard
Lemon or lemon juice
Turmeric and rubbing alcohol OR co...