DEEP TIME by Amanda Manzanares

By amanda.manzanares | Updated: June 17, 2024, 4:07 p.m.

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THIS SEMESTER 
LEARN ABOUT  GEOLOGICAL TIME
ALSO KNOWN AS
DEEP TIME
Do you think 80 is old?
First let's get some perspective
Around
440,000 years old
What about Colorado's 
Great Sand Dunes?
252-66 Million years ago (Ma)
What about Dinosaurs?
4.6 Billion (Ga)
NOT Million (Ma)
But Billion years old!
What about the Earth?
Let's start
from the beginning.
READY
?
Stick your arm out to the side
Your shoulder is 4.6 Ga

And the tip of your nail on your middle finger is the present
(Ga means billions of years)
Your arm represents the entirety of Earth's history!
With this in mind, point to
where you think the...
Cambrian Explosion Occured? 
This is when we see an abundance and diversity of life in the fossil record!
In the middle of you palm
https://www.mining.com/web/your-arm-is-a-cheat-sheet-for-geological-time/
Dinosaurs appear? 
Point to when you think the dinosaurs first appeared?
Around the middle knuckle of your middle finger
https://www.mining.com/web/your-arm-is-a-cheat-sheet-for-geological-time/
Dinosaurs extinction? 
When do you think the dinosaurs went extinct?
Around your last knuckle of your middle finger
https://www.mining.com/web/your-arm-is-a-cheat-sheet-for-geological-time/
Humans? 
When do you 
think humans appeared?
At the very tip of the nail of 
your middle finger
https://www.mining.com/web/your-arm-is-a-cheat-sheet-for-geological-time/
your shoulder blade and your palm?!
So what happened in all this time between
The Moon Forms!
Mountain Building!
Life Begins!
https://sciencing.com/list-singlecell-organisms-8543654.html
Earth's atmosphere becomes oxygen rich!
Almost killing off ALL life! The first mass extinction event!
Oceans Form!
https://www.abc.net.au/science/articles/2014/08/13/4053281.htm
And So Much More!
https://www.wired.com/2017/04/dangerous-volcano-can-tricky-thing-pin/
Join me in learning 
about 
Earth's amazing 
history
DIVE WITH ME INTO
DEEP TIME

DEEP TIME by Amanda Manzanares

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