https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap made by me therefore its usefull en-us 2022-02-14 02:38:52 UTC 2025-12-03 19:01:53 UTC hello@padlet.com hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045293845 A giant cloud floated in the Milky Way Galaxy, made of dust and gas. It contained some heavier atoms, which were formed when stars died.  ]]> 2022-02-14 02:56:31 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045293845 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294081 The solar system is created. A cloud of Gast and dust formed the planets. This was caused by the solar nebula spinning and formed a clump in the centre due to the heat. That clump would become the Sun. Scientists discovered this by determining the age of rocky materials from the asteroid belt. Asteroids are small, rocky, icy, metallic bodies, that were left over when the solar system has formed. ]]> 2022-02-14 02:56:42 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294081 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294420 The gas and dust leftover from forming the sun would form smaller clumps. The spinning cloud (solar nebula) would allow many clumps to collide, many forming planets. One of these clumps would form Earth. This was the start of the Precambrian Eon. ]]> 2022-02-14 02:56:52 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294420 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294634 bacteria was formed, allowing oxygen to be made with the process of photosynthesis. Over a few hundred million years, the oxygen that was able to build up the atmosphere, has changed ]]> 2022-02-14 02:57:03 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045294634 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045295354 the Precambrian Eon ends, lasting over 4 billion years. This allowed many kinds of life to appear such as fish and some athropods. This is also when the Palaeozoic starts. ]]> 2022-02-14 02:57:34 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045295354 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045295740 The Palaeozoic ends. Wiping out almost all life. This was the start of the Mesozoic Era, the age of the dinosaurs. ]]> 2022-02-14 02:57:52 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045295740 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296128 End of the Mesozoic Era, where most living things went extinct. This was also the start of the Cenozoic Era, which is the era we live in today. ]]> 2022-02-14 02:58:03 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296128 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296580 Start of Humans ]]> 2022-02-14 02:58:24 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296580 hannasyzzz1 https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296779 20% of the atmosphere is oxygen. Life on Earth has adapted and evolved to live within the atmosphere. ]]> 2022-02-14 02:58:34 UTC https://padlet.com/hannasyzzz1/zerxtqbqyqquv3ap/wish/2045296779