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Secret Messages With Invisible Ink

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!



Measuring spoons

3 cups or small bowls


Q-tips or a brush

Old newspaper or cardboard

Paper Towels

Method 1


Lemon or lemon juice


Method 2

Baking soda


Turmeric and rubbing alcohol OR con...


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