Activity2: The early atmosphere by dgavinet https://padlet.com/dgavinet/activity2 DNL SVT anglais Confolens/enseignement scientifique /thème 1 en-us 2020-08-23 13:22:18 UTC 2023-03-09 18:14:46 UTC hello@padlet.com https://padlet.net/icons/png/1f30d.png The first atmosphere : 4,55 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336217 group1]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336217 Witnesses of the first atmosphere dgavinet https://padlet.com/dgavinet/activity2/wish/693336218 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336218 The oceans and the moon: 4,53 to 4,5 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336219 group2]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336219 water phase diagram dgavinet https://padlet.com/dgavinet/activity2/wish/693336220 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336220 The hadean eon: 4,5 to 3,8 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336221 group3]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336221 uncertain history because no evidence dgavinet https://padlet.com/dgavinet/activity2/wish/693336222 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336222 The archean eon: 3,8 to 2,5 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336223 group 3 ]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336223 Cyanobacteria and the oxygen revolution dgavinet https://padlet.com/dgavinet/activity2/wish/693336224 doc1]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336224 dgavinet https://padlet.com/dgavinet/activity2/wish/693336225 group 4]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336225 Stromatolithes, Cyanobacteria and oxygen dgavinet https://padlet.com/dgavinet/activity2/wish/693336226 doc2]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336226 The great oxidation: 2,4 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336227 group 5]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336227 Banded iron formations (BIF's) : evidence of oxygen in early atmosphere dgavinet https://padlet.com/dgavinet/activity2/wish/693336228 are sedimentary mineral deposits consisting of alternating beds of iron-rich minerals (mostly hematite) and silica-rich layers (chert or quartz) formed about 3.0 to 1.8 billion years ago]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336228 Snowball Earth: 2,4 to 2,2 billion years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336229 group 6]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336229 Greenhouse effect dgavinet https://padlet.com/dgavinet/activity2/wish/693336230 explain the greenhouse effect]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336230 The Phanerozoic eon : 542 million years ago dgavinet https://padlet.com/dgavinet/activity2/wish/693336231 group...]]> 2020-08-23 13:22:18 UTC https://padlet.com/dgavinet/activity2/wish/693336231 Instructions: dgavinet https://padlet.com/dgavinet/activity2/wish/693353894 use this timeline to organize your work for your oral presentation. Don't forget to use all the documents or videos.]]> 2020-08-23 14:10:24 UTC https://padlet.com/dgavinet/activity2/wish/693353894