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Activity: Create Your Own Invisible Ink

Anyone can make invisible ink at home using just a few everyday household ingredients. Follow our simple directions and you’ll be watching your secret message appear in no time!


  • baking soda
  • water
  • paper
  • paintbrush or cotton swab
  • grape juice concentrate


Step 1: Mix equal parts baking soda and water together. For one kiddo ¼ cup of each should work well. If you have more than one kiddo giving this a try you’ll want to double or even triple the amounts.

Step 2: Grab your paintbrush or cotton swab, dip it into the solution and then paint a secret message on the paper. And by paint, we mean use your paintbrush to write a secret message.

Step 3: Now use the grape juice concentrate to paint over the entire page and your secret message will be revealed!

Step 4: Stand back and marvel at the magic!!!

Step 5: Remember, grownups can upload pictures and videos of your big reveal and share them with us at