Our Changing Earth
Published on Nov 21, 2015
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PRESENTATION OUTLINE
Most of the solid part of the earth is made of great masses of rock. The small rocks we collect are just pieces that broke off from the huge masses. The earth we live on is changing all the time.
Photo by Martin LaBar
At the center of our earth is a solid inner core of metallic rock.
Photo by Argonne National Laboratory
Surrounding the inner core is the outer core. This layer is made of melted metals.
Photo by Graela
The mantle is just below the crust and is a semi liquid layer of melted rock called magma.
Photo by [Danny_21]
The outer layer of the earth is called the crust. It is made of rock covered by a thin layer of soil.
Photo by arbyreed
Continental crust is the part of the earth's crust that contains the continents.
Photo by Darkroom Daze
The oceanic crust is found under the ocean.
Photo by Fancy Horse
The earth we live on is changing all the time.
Photo by NASA's Marshall Space Flight Center
The crust is broken up into pieces that are attached to a small top layer of the mantle. These chunks of crust are called plates and they float on top of the semi-liquid mantle.
Photo by BrotherMagneto
This results in the movement of continents around the world, pushes up volcanoes and causes earthquakes to happen.
Photo by faberdesign
The earth we live on is changing all the time.
Photo by eye of einstein
