1. Earth’s Interior

2. Earth’s Structure

3. Earth’s Structure

4. Physical Properties

5. Physical Properties

6. Physical Properties

7. 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.

8. 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.

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