Composition of Earth by Mekaya Williams franklin https://padlet.com/2027038/m7k1x2fqyz21 Section 1 Notes en-us 2017-02-06 13:38:44 UTC 2017-05-17 03:14:31 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Soccerball.png Earth 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151804680 3 layers, crust, mantle, core]]> 2017-02-06 13:43:45 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151804680 closer to the center of Earth 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151807995 more denser layers get]]> 2017-02-06 13:52:57 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151807995 crust 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151808140 living organisms live here]]> 2017-02-06 13:53:19 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151808140 continental crust 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151808614 surface, less dense, silica rich minerals, thicker, became solid after a billion years since the Earth formed, Earth cooled

]]> 2017-02-06 13:54:28 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151808614 oceanic crust 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151809701 ocean floor, more dense, iron bearing minerals, forms as lava rises, younger, consistently being recycled]]> 2017-02-06 13:57:20 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151809701 crust and mantle 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151810021 brittle
makeup ]]> 2017-02-06 13:58:15 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151810021 mantle 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151810102 contains two parts, upper level and lower level]]> 2017-02-06 13:58:24 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151810102 lithosphere 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/151810975 brittle nature causes to crack under stress]]> 2017-02-06 14:00:27 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/151810975 tectonic plates 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152125818 constantly moving]]> 2017-02-07 13:49:02 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152125818 thickest crust 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152125950 mountains]]> 2017-02-07 13:49:17 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152125950 subduction 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152126330 oceanic crust sinking back towards mantle]]> 2017-02-07 13:50:11 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152126330 asthenosphere 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152127212 top portion of mantle, rock flows bc of pressure & heat, liquid rock in convection]]> 2017-02-07 13:52:25 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152127212 mesosphere 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152127384 deeper/bottom portion of mantle, rock cannot flow, pressure too deep/hard, iron, uranium, thorium, potassium, magnesium ]]> 2017-02-07 13:52:54 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152127384 Convection in mantle 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152128390 flow of rock in asthenosphere occurs bc of this, heat transfer, occurs in liquids, solids (soft/plastic rock) & gases, causes circular rolling motion of boiling water, ]]> 2017-02-07 13:55:37 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152128390 thermal energy 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152131133 inside earth heats rock at bottom of asthenosphere]]> 2017-02-07 14:03:33 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152131133 energy 2027038 https://padlet.com/2027038/m7k1x2fqyz21/wish/152131890 leftover from ]]> 2017-02-07 14:05:17 UTC https://padlet.com/2027038/m7k1x2fqyz21/wish/152131890