https://padlet.com/m_moran4/ms1wh1clv1bv 5th Year Geography en-us 2018-11-07 16:55:03 UTC 2018-11-07 17:02:42 UTC hello@padlet.com m_moran4 https://padlet.com/m_moran4/ms1wh1clv1bv/wish/301634128 The Earth's Crust is made up of solid materials known as rocks. 
Most of the earth's rocks are concealed beneath soil and Vegetation however in some places they are exposed above the surface. 
The huge diversity of the earths rocks have evolved over thousands of millions of years through the geological processes of igneous activity, changes in form known as metamorphism and the formation of sedimentary rocks. ]]> 2018-11-07 16:58:39 UTC https://padlet.com/m_moran4/ms1wh1clv1bv/wish/301634128