The Atmosphere Over Time by Maya Vilchik https://padlet.com/vilchimr26/abmfhmnppnhnrk3p en-us 2023-04-24 19:48:55 UTC 2025-11-16 01:17:27 UTC hello@padlet.com 4.6 bya vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566224428 2023-04-24 19:53:08 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566224428 4.0 bya - 2.5 bya vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566224771 2023-04-24 19:53:31 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566224771 2.6 bya - 400 mya vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566225565 2023-04-24 19:54:25 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566225565 400 mya - 290 mya vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566225958 2023-04-24 19:54:53 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566225958 290 mya - Present vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566226287 2023-04-24 19:55:16 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566226287 Sources vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566227457 https://forces.si.edu/atmosphere/02_02_00.html]]> 2023-04-24 19:56:35 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2566227457 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567236755 - Molten surface with gases from volcanoes
- Atmosphere mostly hydrogen, sulfide, methane, and up to 200 times the amount of carbon dioxide in today's atmosphere]]> 2023-04-25 13:20:56 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567236755 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567246929 - Cyanobacteria developed, photosynthesizing and creating free oxygen
- All of the photo synthesis made Earth's atmospheric oxygen content increase, and the carbon dioxide decrease.]]> 2023-04-25 13:27:10 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567246929 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567249987 - Photosynthesis cleared the methane in the air
- Oxygen in the air oxidized iron, making redbeds of iron oxide
- The new oxygen gave way to the Cambrian explosion with new marine life. 
- In the later years of this time period, we start to see small plants and invertebrates, and four-footed animals.]]> 2023-04-25 13:29:14 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567249987 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567262039 - Plant and animal life was huge, increasing oxygen levels to 35%
- Forest and swamps formed. Plants and animals died in masses, CO2 actually decreased, cooling earth.
- Dead matter over time became coal that we use today.]]> 2023-04-25 13:37:21 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567262039 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567272786 - The climate was warmer, with little to no ice caps
- The Eocene Epoch was the warmest, with many animals living in polar regions
- Tropical areas are thought to be the same temperature as they are now
- Now, carbon dioxide is increasing from human activity, harming the ozone]]> 2023-04-25 13:43:58 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567272786 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567275361 2023-04-25 13:45:09 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567275361 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567281919 2023-04-25 13:49:14 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567281919 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567292303 2023-04-25 13:55:29 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567292303 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567294889 2023-04-25 13:57:06 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567294889 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567299607 2023-04-25 13:59:41 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567299607 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567300117 2023-04-25 14:00:01 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567300117 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567302681 2023-04-25 14:01:40 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567302681 vilchimr26 https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567305676 2023-04-25 14:03:38 UTC https://padlet.com/vilchimr26/abmfhmnppnhnrk3p/wish/2567305676