Where does she get this stuff LOL

Really, some days, since I am so used to A and her way of thinking and doing things that I forget what is normal development, and I start to overlook the things she does that sets her apart...but on occasionally something happens that is just so profound that is jolts me be back to reality and I am awe struck....Truly awe struck. Today was one of those events, and I was lucky that Dh was at home to witness it. He and I just stared at each other dumb struck afterwards, and are still amazed.

Dh comes home for lunch everyday and today we were eating at the table when I told him that I was so impressed that I drove down our mountain in snow for the first time today. He said, "well its when the snow melts and then freezes again that you really have to worry." And A pops in "When things go from ice to water and back to ice, that's call reversible change"

We sat there just in awe. I was thinking wow, pretty good observations. We have never read nor discussed this, yet..... I went and googled it and found "reversible changes are substances that can be changed from one thing to another then back to the other thing again, like ice, when you heat ice it becomes a liquid, but if it freezes again, it returns to solid form as ice and thus the change is reversed" Okay...its an ACTUAL scientific term. HOW DOES SHE KNOW THIS??? This is not the first time she has told me a scientific concept that she has never been taught nor even remotely introduced to even in a book or show....she just somehow KNOWS and that.....well....shocks us back to reality LOL.