Module 6 - Earth's Internal Heat-ES.pptx

Earth's Internal Heat

1. Earth’s Internal Heat

2. Heat Energy

3. a. Primordial heat The internal heat that gradually gathered together by means od dispersion (spread) in the planet during its few million years of evolution. Left over from the planet's fiery formation. The thermal energy released as a result of spontaneous nuclear disintegrations. The Earth contains a certain amount of radioactive elements that decay, heating up the interior. b. Radiogenic heat

4. Sources of Heat and Heat Transfer 3 process of Heat Transfer: 1. Conduction 2. Convection 3. Radiation

5. 3 process of Heat Transfer: Sources of Heat and Heat Transfer occurs more readily in solids and liquids, where the particles are closer together than in gases, where particles are further apart. Conduction the process by which heat energy is transmitted through collisions between neighboring atoms or molecules

6. 3 process of Heat Transfer: Sources of Heat and Heat Transfer Conduction

7. 3 process of Heat Transfer: Sources of Heat and Heat Transfer Conduction

8. 3 process of Heat Transfer: Sources of Heat and Heat Transfer Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle which results to movement of tectonic plates the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. CONVECTION

9. 3 process of Heat Transfer: Sources of Heat and Heat Transfer CONVECTION

10. 3 process of Heat Transfer: Sources of Heat and Heat Transfer CONVECTION

11. 3 process of Heat Transfer: Sources of Heat and Heat Transfer Least important mode of heat transport on Earth. This controls the temperature at the Earth’s surface Radiation a process where heat waves are emitted that may be absorbed, reflected, or transmitted through a colder body; heat exchange

12. 3 process of Heat Transfer: Sources of Heat and Heat Transfer Radiation

13. Summary Sources of Heat and Heat Transfer