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Spy Camp

Invisible Ink Message!

Soleil Kohl

How can we write a message that stays invisible before it arrives? Let's try making our own invisible ink two different ways to see what works best!

Photos From Class

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Lily studying dermatoglyphics!

Materials Needed

Small dish or bowl

Paper

Cotton swabs

Baking soda

Water

Lemon juice

Grape juice

Lamp or heat source