1. SCIENCE 8 TOPIC 8a

2. HOW IS THE ATMOSPHERE PRIMARILY HEATED?

3. Reradiated solar energy given off of the earth’s surface

4. WHAT ARE SOME MINOR SOURCES OF HEAT FOR THE EARTH?

5. Combustion (burning things)

6. WHAT ARE SOME MINOR SOURCES OF HEAT FOR THE EARTH? Combustion (burning things) Oxidation (changing food to energy)

7. WHAT ARE SOME MINOR SOURCES OF HEAT FOR THE EARTH? Combustion (burning things) Oxidation (changing food to energy) Winds (friction against objects

8. WHAT ARE SOME MINOR SOURCES OF HEAT FOR THE EARTH? Combustion (burning things) Oxidation (changing food to energy) Winds (friction against objects Volcanoes (erupting hot gases)

9. WHAT IS THE DEFINITION TO EVAPORATION

10. When liquid water turns to water vapor below the boiling point

11. WHAT IS THE DEFINITION TO TRANSPIRATION? When living plants transfer liquid water to the atmosphere as water vapor

12. WHY ARE THE OCEANS PRIMARY SOURCES OF MOISTURE FOR THE EARTH’S ATMOSPHERE? Their great surface areas for evaporation

13. WHAT FACTORS EFFECT EVAPORATION AND TRANSPIRATION?

14. Amount of energy present

15. WHAT FACTORS EFFECT EVAPORATION AND TRANSPIRATION? Amount of energy present Amount of surface area

16. WHAT FACTORS EFFECT EVAPORATION AND TRANSPIRATION? Amount of energy present Amount of surface area Moisture content of the air

17. WHY IS HEAT LOST IN THE PROCESS OF EVAPORATION? Heat is lost in the process of evaporation because the molecules of water vapor that break away from the liquid state take with them a great amount of heat (kinetic) energy

18. WHY IS HEAT LOST IN THE PROCESS OF EVAPORATION?

19. WHAT IS SATURATION VAPOR PRESSURE?

20. Well, first you need to know what vapor pressure is… It’s the part of the total air pressure attributed to the weight of the water vapor only

21. WHAT IS SATURATION VAPOR PRESSURE? Then you need to know what saturation is… Or…the rate of evaporation and the rate of condensation is in a dynamic equilibrium

22. DRAWING AND EXPLAINING HOW AIR CIRCULATES IN THE ATMOSPHERE