EARTH'S INTERNAL HEAT AND ITS TYPES: PRIMORDIAL AND RADIOGENIC HEAT.pptx

This presentation discusses about Earth's Internal Heat, which is the main reason why different geologic processes occur. This also tells about the two types of internal sources of earth's heat, which are the primordial heat and radiogenic heat.

1. Welcome to EARTH AND LIFE SCIENCE! CARLO JAMES Q. SABLAN SHS Teacher 2

2. QUOTATION “The starting point of all achievements is desire. A small amount of fire makes a small amount of heat.” 2

3. PUZZLE GAME Directions: Write down ten words that you can find in the puzzle. 3

4. 4 Mantle Convection Current Primordial Earth Radiogenic Tectonic Heat Radiation Conduction

5. The Earth’s INTERNAL HEAT

6. ACTIVITY Directions: The class will be grouped into two. The groups will read and analyze two respective passages. After reading, the groups will have to answer some questions. 6

7. Rubrics 7

8. The Earth’s INTERNAL HEAT

9. 9

10. Sources of Internal Heat 10 1. PRIMORDIAL HEAT heat from accretion and bombardment of the Earth during the early stages of formation The core is a storage of primordial heat.

11. Sources of Internal Heat 11 1. PRIMORDIAL HEAT

12. Sources of Internal Heat 12 1. PRIMORDIAL HEAT

13. Sources of Internal Heat 13 2 . RADIOGENIC HEAT the thermal energy released as a result of spontaneous nuclear disintegration It involves the disintegration of natural radioactive elements inside the earth – like Uranium, Thorium and Potassium.

14. Sources of Internal Heat 14 2 . RADIOGENIC HEAT

15. Heat Transfer Processes 15 1. CONDUCTION defined as the process by which heat energy is transmitted through collisions between neighboring atoms or molecules m olecules do not transfer location

16. Heat Transfer Processes 16 1. CONDUCTION

17. Heat Transfer Processes 17 1. CONVECTION involves transfer of heat by the mass motion of molecules, which is a more efficient means of heat transport in the Earth compared to pure conduction

18. Heat Transfer Processes 18 1. CONVECTION

19. Heat Transfer Processes 19 1. RADIATION involves transfer of heat through electromagnetic radiation and does not involve particles to travel through is the least important mode of heat transfer in the Earth

20. Heat Transfer Processes 20 1. RADIATION

21. Heat Transfer in Earth 21

22. Mantle Convection 22

23. Mantle Convection 23

24. Summary 24 1. What are the sources of Earth’ internal heat? 2. Describe the three heat transfer processes. 3. What is the importance of heat in our planet?

25. Think Over 25 In your own words, how do the three (3) major processes of heat transfer affect the temperature of the Earth?

26. Quiz 26 Directions: Read each question and fill in the blanks with the correct term to complete the statement .

27. Quiz 27 1 . __________________ in the interior of the earth can be classified as primordial and radiogenic heat. 2. The thermal energy released as a result of spontaneous ____________ is called Radiogenic Heat while the internal heat energy accumulated by ____________ in a planet during its few million years of evolution is called Primordial heat. 3. There are three processes that transfer heat: ____________, ____________, and radiation.

28. Quiz 28 Convection Accretion Heat Nuclear decay Conduction Magma WORD POOL

29. Quiz 29

30. Assignment 30 Directions: Answer the questions below. 1 . What is magma? 2. How is magma formed? 3. What is magmatism?

31. Thank You!