Selasa, 17 September 2013

dating

E: How do they know how old dinosaur bones are?

Me: Well they can look at the chemicals that are in the bones. It's called dating. They can tell by the chemical reactions that have happened in the bone.

E: Do they mix the bones up and mix them in with a whole bunch of dates, and that's how they tell?

[he was serious in asking this, he wasn't joking around]

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