Invisible Ink Thinking Putty - Ghostwriters Series
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$15.99
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Description
Often used to encode top-secret information, invisible ink has a long and interesting history dating back to 4th century BC. There are all kinds of ways to make and read invisible ink (like heat and lemon juice), but our Invisible Ink Thinking Putty® uses ultraviolet light to mimic blue ink on a sheet of green paper. Write with the Glow Charger® and watch with wonder as your words evaporate into thin air.
Pickup currently unavailable at A2Z Science & Toys
A2Z SKU: 363828
Vendor Code: CAPII020
Age Range: 8+
Interests: Secret Agents & Spies, Sensory
Vendor Code: CAPII020
Age Range: 8+
Interests: Secret Agents & Spies, Sensory
Often used to encode top-secret information, invisible ink has a long and interesting history dating back to 4th century BC. There are all kinds of ways to make and read invisible ink (like heat and lemon juice), but our Invisible Ink Thinking Putty® uses ultraviolet light to mimic blue ink on a sheet of green paper. Write with the Glow Charger® and watch with wonder as your words evaporate into thin air.
Invisible Ink Thinking Putty - Ghostwriters Series




