The Layers of the Earth By: Mrs. Becker. The Earth’s Crust The first layer consists of about 10 miles of rock and loose materials, scientists call the.

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Presentation transcript:

The Layers of the Earth By: Mrs. Becker

The Earth’s Crust The first layer consists of about 10 miles of rock and loose materials, scientists call the crust. Underneath the continents, the crust is almost three times as thick, as it is under the oceans.

The Earth’s Crust

The Earth’s Mantle Traveling beyond the Earth’s crust, we next encounter the mantle. The mantle extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth.Traveling beyond the Earth’s crust, we next encounter the mantle. The mantle extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth. The first 50 miles of the mantle are believed to consist of very hard rigid rock. The next 150 miles or so is believed to be super-heated solid rock, that due to the heat energy is very weak. Below that for the next several hundred miles, the Earth mantle is believed to once again be made up of very solid and sturdy rock materials.The first 50 miles of the mantle are believed to consist of very hard rigid rock. The next 150 miles or so is believed to be super-heated solid rock, that due to the heat energy is very weak. Below that for the next several hundred miles, the Earth mantle is believed to once again be made up of very solid and sturdy rock materials. Traveling beyond the Earth’s crust, we next encounter the mantle. The mantle extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth.Traveling beyond the Earth’s crust, we next encounter the mantle. The mantle extends to a depth of approximately 1,800 miles, and is made of a thick solid rocky substance that represents about 85% of the total weight and mass of the Earth. The first 50 miles of the mantle are believed to consist of very hard rigid rock. The next 150 miles or so is believed to be super-heated solid rock, that due to the heat energy is very weak. Below that for the next several hundred miles, the Earth mantle is believed to once again be made up of very solid and sturdy rock materials.The first 50 miles of the mantle are believed to consist of very hard rigid rock. The next 150 miles or so is believed to be super-heated solid rock, that due to the heat energy is very weak. Below that for the next several hundred miles, the Earth mantle is believed to once again be made up of very solid and sturdy rock materials.

The Earth’s Mantel

The Earth’s Outer Core Traveling still deeper within the Earth, we next would encounter the Earth’s outer core, which extends to a depth of around 3000 miles beneath the surface. It is believed that this outer core is made up of super-heated liquid molten lava. This lava is believed to be mostly iron, and nickel.

The Earth’s Outer Core

The Earth’s Inner Core Finally, we would reach the Earth’s inner core. The inner core extends another 900 miles inward towards the center of the Earth. It is believed that this inner core is a solid ball of mostly iron, and nickel.

The Earth’s Inner Core