What was earth like before life evolved? In this video, I go over the differentiation & development of of Earth’s layers, the development of Earth’s early atmosphere & the evolution of the atmosphere’s composition toward a neutral rather than reducing state, the formation of the first oceans on Earth & the early ocean’s composition and evolution from acidic to neutral pH conditions, continental weathering due to early Earth’s acidic ocean, the ultramafic composition of Earth’s early crust, the partial melting of Earth’s first crust to form differentiated oceanic and continental crust, and the first landmass on Earth & the accretion of these continental pods to form large continents. Check out the part 2 over the first life on Earth here: https://youtu.be/HtwAwKLSlMk

References: Geomicrobiology: https://amzn.to/2WAloTR
Biology of Microorganisms: https://amzn.to/3kQqIuD

GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, and donate to support the channel if you’d like!)

0:00 what this video covers
0.37 earth formation and differentiation
2:54 formation of the atmosphere & oceans
4:23 early earth atmosphere
11:50 early earth oceans
14:51 first landmasses on earth
17:20 early life (next video!)

Hey there, Earth enthusiast! Check my favorite Earth-friendly products:
Bamboo toilet paper: https://shrsl.com/3cvku
Bamboo paper towels: https://shrsl.com/3cvkw
Compostable tableware: https://shrsl.com/3cvkz
Compostable trash bags: https://shrsl.com/3cvl0
Bamboo cutlery + straw! : https://shrsl.com/3cwfl
Eco-Friendly Tote (great for grocery shopping!): https://shrsl.com/3cwfp
Reusable straws + cleaning brushes (my fav!): https://shrsl.com/3cwft
Eco-friendly laundry detergent: https://shrsl.com/3cwgo

Directly offset your carbon footprint with Wren: https://shrsl.com/3d0t2
(Just click link, press get started, take the free C footprint quiz, then choose how much you want to reduce your footprint by donating to the C sequestration projects they’re funding!)

Non-textbook books I recommend:
Oxygen by D. Canfield: https://amzn.to/3gffbCL
Brief history of Earth by A. Knoll: https://amzn.to/3w3hC1I
Life on young planet by A. Knoll: https://amzn.to/2RBMpny
Some assembly required by N. Shubin: https://amzn.to/3w1Ezm2
Your inner fish by N. Shubin: https://amzn.to/3cpw3Wb
Oxygen by N. Lane: https://amzn.to/3z4FgwZ
Alien Oceans by K. Hand: https://amzn.to/3clMx1l
Life’s Engines: https://amzn.to/3w1Nhke

Tools I use as a geologist/teacher/student:
Geology field notebook: https://amzn.to/3lb6dJf
Geology rock hammer: https://amzn.to/3DZw8MA
Geological compass: https://amzn.to/3hfbdLu
Geological hand lens: https://amzn.to/3jXysM5
Camera: https://amzn.to/3l6fGRT
Carbon-neutral pencil bag: https://shrsl.com/3cvjv
Carbon-neutral backpack: https://shrsl.com/3cvkc

Disclaimer: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! And as always, let me know your topic suggestions in the comments down below!

Where on Earth did life begin? Explore the hydrothermal vents in Earth’s crust as simple compounds gave way to complex life.

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Billions of years ago, simple organic compounds assembled into more complex coalitions that could grow and reproduce. At the time, Earth had widespread volcanic activity and a hostile atmosphere that made it almost devoid of a suitable environment for living things. So where did life begin? Luka Wright searches for the cradle of life that gave rise to the billions of species that inhabit our planet.

Lesson by Luka Seamus Wright, directed by Nick Hilditch.

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View full lesson: https://ed.ted.com/lessons/the-mysterious-origins-of-life-on-earth-luka-seamus-wright

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