https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9 Made with awesomeness en-us 2020-09-07 05:05:59 UTC 2026-03-02 09:42:56 UTC hello@padlet.com https://padlet.net/icons/png/1f9d0.png asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724706677 A supernova caused a nebula to pull together and become a spinning disk of dust called a solar nebula or protoplanetary disk. The energy and gravity at the center formed a star that we call the Sun.]]> 2020-09-07 11:33:00 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724706677 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724715081 As dust swirled around the sun, planets started to form as a result of particles colliding and forming bigger and bigger masses (this process is called accretion). ]]> 2020-09-07 11:42:22 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724715081 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724720473 A protoplanet the size of Mars collided with Earth and broke into pieces, which came together to form the Moon. ]]> 2020-09-07 11:47:24 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724720473 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724726356 Many asteroids and comets slammed into Earth as a result of Jupiter's gravitational pull, and water from these asteroids and comets melted and formed water vapour.]]> 2020-09-07 11:53:49 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724726356 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724729080 The Earth started to cool and water vapour condensed into the first oceans, although there were still many active volcanoes on Earth. As the planet started to cool, heavier elements started to sink towards Earth's center, creating Earth's layers and forming its first continents, called protocontinents.]]> 2020-09-07 11:56:48 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724729080 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724733015 As Earth started to cool down, it formed a thin crust. 70% of Earth's crust was formed by 3 billion years ago.]]> 2020-09-07 12:00:45 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724733015 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724736205 After an oxygen spike, the Earth hardly changed for a billion years which scientists call the "Boring Billion."]]> 2020-09-07 12:04:16 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724736205 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724737295 Oxygen on Earth started from biochemical rocks and bacteria due to the evolution of photosynthesis. This was the start of the oxygenation of Earth.]]> 2020-09-07 12:05:29 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724737295 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724743942 A supercontinent ripped apart, causing an ice age called the "Snowball Earth." The whole Earth cooled significantly, and glaciers covered a lot of it. ]]> 2020-09-07 12:12:06 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724743942 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724748844 650 million years ago, oxygen levels started rising again, and the first animals emerged.]]> 2020-09-07 12:16:53 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724748844 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724750880 During the Cambrian Explosion, many different kind of animals emerged, and life on Earth increased significantly.]]> 2020-09-07 12:18:52 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724750880 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724753092 During the Permian Period, in just 60,000 years more than 90% of life went extinct. This was the biggest mass extinction in the fossil record. ]]> 2020-09-07 12:20:47 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724753092 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724755384 At the end of the Cretaceous Period, all dinosaurs went extinct, more than 85% of life on Earth.]]> 2020-09-07 12:22:46 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724755384 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724756619 The fifth major ice age began, and is still ongoing as of right now.]]> 2020-09-07 12:23:52 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724756619 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724757878 200,000 years ago, the first humans emerged. Humans are the most intelligent life forms on Earth. ]]> 2020-09-07 12:25:03 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/724757878 asher_sevy1 https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/729772950 How the Earth Formed

https://newsela.com/read/natgeo-formation-of-earth/id/2000002395/?collection_id=2000000192&search_id=c96f553b-2816-4f8d-8d39-7c6f5a209f48

https://thewire.in/science/a-brief-history-of-the-earth-how-it-all-began

https://signsofthelastdays.org/earths-crust-peeling-in-two-under-ocean-national-geographic/

https://www.bbvaopenmind.com/en/science/bioscience/what-were-the-first-animals-on-earth/

https://www.cbsnews.com/news/extinct-tree-climbing-human-walked-with-a-swagger/

https://science.time.com/2012/09/11/second-gunman-in-death-of-the-dinosaurs/

https://www.quora.com/What-did-Earth-look-like-3-billion-years-ago]]> 2020-09-09 02:36:05 UTC https://padlet.com/asher_sevy1/m5lfplmafyu1ptj9/wish/729772950