Our family has hosted a booth at the expo both years. We present Squishy Circuits, which teaches kids about electricity and circuits using homemade play-doh that is made either conductive (containing salt) or insulating (containing sugar).
Audrey and Charlotte really love working in the booth - being "behind the table." And they are pretty good at teaching. The expo lasts three hours and that challenges the girls' attention span but they switch back and forth between teaching and playing themselves.
We estimate that more than 120 kids stopped by the booth! It's rewarding to watch them build a circuit - when they succeed in lighting up an LED you can see their mind light up a half second later.
Our neighbor Jen is one of the organizers of the event. She took a great photo of Audrey and me working in the booth and that photo made the local newspaper!
We'll be back next year.
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