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Take the flashcards and matching sections of the following quizlet link on geologic history:
1. Write out your best time.
2. Write out 8 of your weakest terms.
3. Use it as review for the Unit Test

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23Click on the Scholastic ScienceFlix - (user name: syrsls password: syrsls) use the "Read It" section to answer the following questions in your notebook:
1. What was early Earth like 4.5 billion years ago?
2. Flash forward 3 billion years-what do we get?
3. What do fossils tell us about geologic time?
4. Radiocarbon dating tells us the ages of what 2 things? How does it work?
5. Compare C-14 to U-238 for dating older and younger fossils?
6. What is SHRIMP dating? How is vapor influenced in it for dating rocks and fossils?
7. What are 3 agents that change the climate and shape the Earth's changing geology?
8. What period saw Mastodonts?
9. What river carved out the Grand Canyon 2 billion years ago?

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Click on the video link below and answer the following questions about it in your notebook pausing as needed:
1. What was the Hadeon Era like?
2. How long ago was the Archean Era and what happened there?
3. What happened in the Proterozoic Era?
4. What are the 3 eras of the Phanerozoic that are still going on today?
5. What period do we see amphibians crawling onto land?
6. What Era do we live in?
7. What period and how many millions of year ago do we see mastodons?
The Geologic Timescale
https://www.youtube.com/watch?v=r10oh1NHKv4
Also write 5 key events (such as how did we get water or what were the 1st living things) and write 3 causes of major dying events in complete sentences on this video link below:
History of the Earth in 5-1/2 Minutes
https://www.youtube.com/watch?v=8qnnoePeHlk

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Geologic Timescale
(how to sequence).

1. How old is the Earth Sun and Solar System?
2. Click on the diagram and write 3 Eons, 3 Eras, and 3 Periods in your notebook.

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Major Geologic Events-5 mass extinctions causes & climate change

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Major Geologic Events-5 mass extinctions causes & climate change

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Click on the video below and answer the following questions in your notebook: pausing the video as needed
https://www.youtube.com/watch?v=wissIOikrqc
The 6 Craziest Extinctions Ever
1. Describe the Ordovician Mass Extinction? How long ago? What major living things went extinct? What climate change or impact caused it?
2. In the Silurian (374 MYA) What do plants and insects have to do with the fish and CO2?
3. How did volcanoes and the ozone layer contribute to the Permian Extinction (250 MYA)?
4. What was the main climate cause and what did small dinosaurs that survived become in the Triassic Event (200 MYA)
5. Describe 2 causes of the potential 6th Mass Extinction and why man would be the 1st to go?