1. WHAT MAKES OUR ATMOSPHERE DISTINCT FROM SPACE?

2. 1. The affected medium of atmosphere. (atmospheric composition)

3. Others

4. 1. The affected medium of atmosphere. (atmospheric composition) Others WATER VAPOR DUST

5. 2. “Density” of Molecules

6. Gravitational attraction Directly proportional to mass of two objects (Earth and gas molecules)

7. 2. “Density” of Molecules Gravitation attraction Directly proportional to mass of two objects (Earth and gas molecules) Inversely proportional to distance between the two objects (Earth’s “pull” declines with distance from Earth)

8. Earth’s surface

9. Earth’s surface Atmosphere

10. Earth’s surface Atmosphere Space

11. Earth’s surface Atmosphere Top (400km+) Bottom Space

12. Earth’s surface Atmosphere Strong gravitational attraction Top (400km+) Bottom Space

13. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space

14. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules densely packed

15. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed

16. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height

17. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height Density of Gas

18. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height Density of Gas

19. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height Density of Gas

20. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height Density of Gas Gravity inversely proportional to the square of the distance between objects.

21. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Height Density of Gas 50 % of all gases 10 km (8 miles)

22. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed “Weight of Molecules” Atmospheric Pressure Atmospheric Pressure Height HighLow

23. Earth’s surface Atmosphere Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed “Weight of Molecules” Atmospheric Pressure Atmospheric Pressure Height HighLow

24. Earth’s surface Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Atmospheric Pressure Height HighLow Height of Column X Density of Gases

25. Earth’s surface Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Atmospheric Pressure Height HighLow Height of Column X Density of Gases

26. Earth’s surface Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Atmospheric Pressure Height HighLow Height of Column X Density of Gases

27. Earth’s surface Strong gravitational attraction Weaker gravitational attraction Top (400km+) Bottom Space Molecules far apart Molecules densely packed Atmospheric Pressure Height HighLow Height of Column X Density of Gases

28. OXYGEN MASKS AND “FLYING THE HUMP” IN WORLD WAR 2.

30. TORRICELLI’S BAROMETER