History of the Earth by Geoffrey Liu [STUDENT] https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi No en-us 2023-03-13 05:54:07 UTC 2025-12-23 12:16:59 UTC hello@padlet.com https://padlet.net/icons/png/1f30f.png About 4.54 Billion Years Ago... geoffrey_liu1 https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513883093 Earth consolidates.

Less than 100 million years after the formation of the Solar System, earthed formed by a series of collisions. 

This event marks the beginning of the Hadean Eon.]]> 2023-03-13 05:56:07 UTC https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513883093 About 4.5 Billion Years Ago... geoffrey_liu1 https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513904936 The Earth collides with Theia, a protoplanet.

The collision ejects lots of Earth's mass, which was pulled together over time by gravity to become the Moon.

This event happened during the Hadean Eon.]]> 2023-03-13 06:17:50 UTC https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513904936 About 3.8 Billion Years Ago... geoffrey_liu1 https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513921199 The first continents formed out of molten rock.]]> 2023-03-13 06:36:38 UTC https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513921199 About 3.5 Billion Years Ago... geoffrey_liu1 https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513931583 Single-celled organisms started to add oxygen to the atmosphere through photosynthesis.]]> 2023-03-13 06:48:19 UTC https://padlet.com/geoffrey_liu1/bg54kuf0qnug1wi/wish/2513931583