Remove the first cup & they start falling in a domino effect: 4 Engineering Challenges for Kids – with Cups, Craft Sticks, and Cubes. Fun for rainy days!!

Remove the first cup & they start falling in a domino effect: 4 Engineering Challenges for Kids - with Cups, Craft Sticks, and Cubes. Fun for rainy days!!
Photo via: funathomewithkids.com

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