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Activity: DIY Invisible Ink

Kids love making this DIY Invisible Ink and watching it disappear!



  1. Mix equal parts baking soda and water to make some invisible ink.
  2. Dip a cotton swab into the invisible ink and use it to write a secret message on the paper.
  3. Let it dry completely.
  4. Give the message to a friend or family member. Be sneaky!
  5. Tell the recipient of the note that they can use the paintbrush to paint a thin layer of grape juice onto the paper to reveal the secret message! Wow!!!