Thursday, December 1st, 2011 Bell Ringer: Pull out your Geologic Time Scale and Football Field....
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![Page 1: Thursday, December 1st, 2011 Bell Ringer: Pull out your Geologic Time Scale and Football Field. Then, sit back, and prepare for a full 25 minutes of Earth’s.](https://reader036.fdocuments.us/reader036/viewer/2022062401/5a4d1aee7f8b9ab05997c70a/html5/thumbnails/1.jpg)
Thursday, December 1st, 2011Bell Ringer:Pull out your Geologic Time Scale and Football Field. Then, sit back, and prepare for a full 25 minutes of Earth’s History!
Today’s Learning Goal:• The story of earth’s history• Review Geologic Time
Today’s Agenda:• Earth’s History• Review for Exam
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4.6 Billion Years Ago
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4.51 Billion Years Ago
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About 4.0 Billion Years Ago
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3.8 Billion Years Ago
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When: Cambrian Period: 542 MYA
What: A sudden diversification and rapid evolution of life.
Why is it important: A major point in history that has implications for the evolution of life.
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Permian Extinction
First Reptile
First Land Animal
First Land Plant
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Permian Extinction: “The Great Dying”
When: At the end of the Permian Period – 250 Million Years Ago
Why: The largest mass extinction in Earth’s History! Over 95% of all species extinct, especially in marine environments.
What caused it: The cause is still unknown. Major volcanic eruptions worldwide, contaminating oceans with toxic chemicals
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K-T Extinction (aka, extinction of the
Dinos)
First Flowering Plants
First Bird
Early Dinosaurs & Small Mammals
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K-T Extinction: “Extinction of the Dinosaurs”
When: At the end of the Cretaceous Period – 65 Million Years Ago
Why: Most famous mass extinction: extinction of the dinosaurs.
What caused it: Giant Meteor:
Yucatan Peninsula CraterShocked QuartzK-T Clay layer.
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Modern Humans… You!
First Hominids
First Grass!!!! ****
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How about the Willamette Valley?!
http://www.youtube.com/watch?v=jg1Qo7N2m-k
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Question for thought:
Will this story of the history of the earth stay this way?
Tomorrow:•Geologic Time Exam! (30 points) • Pre-Assessment KWL (3 points)• 10 Multiple Choice (10 points)• 3 Performance Questions (12 points)• 2 Short Answer Questions (5 points)