Project Mc2™ Doll with Experiment - McKeyla's Invisible Ink Pen

Now you can perform an experiment at home with Project Mc2™ leader, McKeyla McAlister™. Make your own invisible ink pen just using household ingredients like baking soda and water.

By Project Mc2

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Description & Features+

Picking Up S.T.E.A.M.
Your ink may seem invisible when you’re writing your secret message, but the pen is actually leaving a residue of sodium bicarbonate (aka baking soda). When you rub your paper with a berry or tea bag, the acid in those items creates a chemical reaction with the baking soda, a base. That reaction makes your message become visible.
• Premium, articulated McKeyla doll, dressed in her undercover spy outfit that reflects her individual style
• Her gloved hands make sure she leaves no fingerprints behind. So many fun details!
• Also includes a fun science activity: invisible ink pen to experiment again and again
• Household ingredients not included
• Accessories for the doll include: McKeyla's Ultimate Lab Kit, beanie hat, spy disguise glasses, and beaker-shaped comb

Specifications+

Available for Shipping to Canada Post
Yes
Assembled Height
11.75 in
Assembled Length
1.75 in
Assembled Weight
.27 lb
Assembled Width
4.25 in
Choking hazard warning
Yes
Collectible
Yes
RecommendedAge-Variant
Age 5-8
Toy Character
Not Applicable
Brand
Project Mc2
Product Identifiers
Walmart Item #
31211906
Model #
539179
SKU
6000195412020
UPC
3505153917

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