Posted in All Kid Activities, Home Investigations

Invisible Ink

We’ve been watching Harry Potter and his wonderful world of magic. After watching the Chamber of Secrets movie, Teo asked me how invisible ink is made. I combed through invisible ink recipes and this one seems to be the best. So, let’s make invisible ink!


You need:

• 2 bowls

• paint brushes / cotton buds

• Paper napkins

• White paper

Mixture #1 (the invisible ink)

• 1 TBSP Baking Soda

• 1/2 cup water

Mixture #2 (the revealing mixture)

• 1/2 tsp Turmeric

• 1/4 cup rubbing alcohol


1. In one bowl, mix the water and the baking soda.


2. In another bowl, mix the rubbing alcohol and turmeric.

You’ll have two mixtures.


3. Use the baking soda and water mixture to make secret messages or draw on the paper. Use a brush or cotton bud. Don’t make the paper too wet.


4. Let the paper dry thoroughly. We waited for about 30 minutes.


5. Use the second mixture (alcohol and turmeric) to reveal the hidden messages/drawings. There were a lot of oohs and aaahs from the boys when the drawings appeared like magic 😊

Caleb: Mine looks like pepperoni pizza mom.

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