Earth’s Interior.

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What are the three Chemical layers of the Earth?

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Presentation transcript:

Earth’s Interior

Earth’s Structure

Earth’s Structure

Physical Properties

Physical Properties

Physical Properties

Seismic Waves Changes in seismic wave direction and speed indicate changes in chemical composition and the physical properties of density, temperature, pressure and state of matter.

Convection Convection is the transfer of energy by the flow of a heated substance (material moves from high heat, low density to low heat, high density) Convection currents in the mantle cause the overlying lithospheric plates to move.

How can our understanding of the earth’s interior help us better understand island formation?