All About Rocks by Jhyman https://padlet.com/jhyman/v3p3qiwu6g9m en-us 2017-01-17 20:03:20 UTC 2025-11-17 08:48:45 UTC hello@padlet.com Making Tools from Obsidian/Joshua https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204866698 Scientists have found obsidian tools in East Africa that are close to two million years old.]]> 2017-11-08 15:33:32 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204866698 Changing form:Metamorphic/Miranda https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204867906 High temperatures and crushing pressure alter the minerals in the rock.]]> 2017-11-08 15:35:06 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204867906 Making Tools from Obsidian/samantha https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868169 Scientist have been working in east Africa have found obsidian stone tool that are nearly two million years old.]]> 2017-11-08 15:35:33 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868169 Born from Magma/Chloe https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868810 Some times when volcanoes erupt the lava cools off really quickly and that
 makes Obsidian. ]]> 2017-11-08 15:36:39 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868810 Making tools from obsidian/Morgan https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868855 Obsidian is a igneous rock that comes from lava that dries fast.]]> 2017-11-08 15:36:45 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204868855 Making tools from obsidian/KOLT https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204869790 Scientists working in East Africa have found obsidian stone tools that are nearly two million years old!!!]]> 2017-11-08 15:38:15 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204869790 What exactly are rocks?-kylynn https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870107 Earth's crust is made almost of rocks. ]]> 2017-11-08 15:38:47 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870107 Changing form metamorphic Rock/ Reyna awes santos https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870124 Metamorphic rocks can change from an older rock.]]> 2017-11-08 15:38:50 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870124 The rock cycle/Carmelo https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870603 The rock cycle has no starting or ending ]]> 2017-11-08 15:39:33 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204870603 Changing form:Metamorphic Rock/ Gracie https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204878711 Magma work's ti,s way up to the cracks of Earth's crust and that heats the rocks around the cracks.Some times the heat of the magma can melt the rock again .]]> 2017-11-08 15:51:54 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204878711 The rock cycle-Ryan https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204879431 Temperatures can make rocks break into more pieces.]]> 2017-11-08 15:52:56 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204879431 Changing From: Metamorphic Rock - Chance https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204910508 Metamorphic rock's form as magma travels through cracks in Earth's crust.

 ]]> 2017-11-08 16:38:09 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204910508 Born from magma-Logan https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204920603 Igneous rock is the strongest rock on earth. Igneous rock come from cooled down magma/lava]]> 2017-11-08 16:54:41 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/204920603 August https://padlet.com/jhyman/v3p3qiwu6g9m/wish/205337125 Magma makes rocks because it heats the rock up.]]> 2017-11-09 15:55:09 UTC https://padlet.com/jhyman/v3p3qiwu6g9m/wish/205337125