Dear Kid,
Today is Old Rock Day.
I don’t know why, but it is.
I’m fascinated by the idea that there might be rocks that aren’t old. Who’s ever heard of a new rock?
For that matter, who determines what “old” is when it comes to rocks?
Q: What happens when you look up geology jokes? A: You know you’ve hit rock bottom! (I didn’t make that up.)
The oldest rock on earth is 4.4 billion years old. They know this because of birth certificate records. Can you imagine the bonfire when that rock has birthday cake?
According to My Friend the Internet, the youngest rocks are on earth are whatever is being spewed out of an active volcano.
The biggest rock on the planet is the one that was in my shoe last night. It’s amazing how our perception of size correlates directly to the length of time a pebble stone boulder is in one’s shoe.
There are probably other interesting facts about rocks, but I couldn’t dig my way through the various sites to find any that I found entertaining. You can consider this a do-it-yourself letter if you’re interested in learning more about rocks.
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