What are three Chemical layers of the Earth

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What are three Chemical layers of the Earth? Crust, mantle, core Each of these

What are three Chemical layers of the Earth? Crust, mantle, core Each of these 3 layers is COMPOSED of same types of CHEMICALS Crust- Silica, Oxygen Mantle- Magnesium, Oxygen Core- Iron, Nickle

Scientists think about the layers of the Earth in 2 different ways. 1 -

Scientists think about the layers of the Earth in 2 different ways. 1 - By CHEMICAL COMPOSITION 2 - By PHYSICAL Properties such as density and state of matter.

What are the five physical layers of the earth? ► 1. Lithosphere ► 2.

What are the five physical layers of the earth? ► 1. Lithosphere ► 2. Asthenosphere ► 3. Mesosphere ► 4. Outer core ► 5. Inner core

1. Lithosphere • The solid top layer of the Earth. • Includes the crust

1. Lithosphere • The solid top layer of the Earth. • Includes the crust and the upper part of the mantle.

2. Asthenosphere • Thin layer of mantle under the lithosphere. • More liquid than

2. Asthenosphere • Thin layer of mantle under the lithosphere. • More liquid than rest of the mantle-“low viscosity”

3. Mesosphere ►The rest of the mantle ►Hotter, but higher pressures keep this layer

3. Mesosphere ►The rest of the mantle ►Hotter, but higher pressures keep this layer more rigid. ►“high viscosity”

4. Outer Core • Liquidlow viscosity • Believed to be the cause of Earth’s

4. Outer Core • Liquidlow viscosity • Believed to be the cause of Earth’s magnetic field.

5. Inner Core Solid due to pressure

5. Inner Core Solid due to pressure

The composition and physical layers of Earth

The composition and physical layers of Earth

The oceanic crust is thinner than the continental crust. Oceanic crust is also denser

The oceanic crust is thinner than the continental crust. Oceanic crust is also denser than continental crust

What are tectonic plates? Large sections of lithosphere that move on top of the

What are tectonic plates? Large sections of lithosphere that move on top of the asthenosphere

How do we know about the inner layers when no one has been there?

How do we know about the inner layers when no one has been there? When an earthquake happens, vibrations called seismic waves travel through the earth at different speeds as the waves hit the different layers.

What is the difference between the PHYSICAL and CHEMICAL COMPOSITION parts of the EARTH?

What is the difference between the PHYSICAL and CHEMICAL COMPOSITION parts of the EARTH?

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