Our Daddy and the two girls visited the coal mine, and then we did some hypothesis testing in the weather exhibit. 
A hypothesis is an idea you can test. Like which of these sliders will travel farther. And we knew that!
We also learned about soy.
And John, ever clever, found a button to push that made a train go. He was a happy, happy lad with that button.
It was a great snowy day trip!
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