1. Review: Atmosphere Air Masses Fronts Winds
Most pictures are not to scale. Please excuse this, Will.

2. The earth’s atmosphere is made of 4 main layers
The earth’s atmosphere is made of 4 main layers. List them in order from earth’s surface.

3. thermosphere (ionosphere & exosphere) mesosphere stratosphere Troposphere

4. “Shooting stars” or meteors can be seen moving through this layer.

5. Mesosphere

6. This is the thickest layer with the highest temperatures.

7. Thermosphere

8. The ozone layer is found within this layer
The ozone layer is found within this layer. {Damage to the ozone layer may be due to smog & chemicals called CFC’s (that come from spray cans & refrigerator coolants under pressure!}

9. Smog & cfcs

10. stratosphere

11. This is the layer where we live & breathe
This is the layer where we live & breathe. its where it rains & snows, too!

12. troposphere

13. This layer of the atmosphere is the last stop before entering “outer Space”.
Earth

14. exosphere

15. True or false? The atmosphere is made of gases only.

16. False!

17. The most abundant gases in dry air are a. carbon dioxide & oxygen b
The most abundant gases in dry air are a. carbon dioxide & oxygen b. nitrogen & oxygen c. carbon dioxide & argon

18. b. nitrogen & oxygen

19. Which is heated faster by the energy from the sun, land or water?

20. Land It takes less energy to heat the land
Land It takes less energy to heat the land. Remember: sand feels very hot when you walk on it during the day, so you run to cooler water!

21. Which area of earth receives more direct solar radiation. A
Which area of earth receives more direct solar radiation? A. the equator B. the poles c. neither of these

22. A. the equator

23. Wind is caused by A. differences in air pressure (caused by cool & warm temps) B. movement of clouds at different levels of the atmosphere c. changes in the water cycle

24. A. differences in air pressure cool (sinks) & warm (rises)

25. Which picture shows a land breeze & which shows a sea breeze?

26. Sea Breeze Land breeze During the day
Breeze blows from the cooler sea towards the warmer land
Land breeze
At night
Breeze blows from the cooler land out towards the still-warm sea

27. What is the name of the winds shown in the red area below
What is the name of the winds shown in the red area below? (they move storms across the U.s.)

28. Jet stream

29. How would you label each air mass in the diagram
How would you label each air mass in the diagram? (Remember: each area needs a temp & a humidity description)

30. Remember: each needs a temp (Polar or Tropical) & humidity description (Continental or Maritime) the air masses are the “boxes”, the arrows show where they are moving cP mP cP mP cT mT mT mT

31. Label the global winds
Remember…mirror image

32. GLOBAL WINDS
Polar Easterlies prevailing westerlies trade winds trade winds prevailing westerlies polar easterlies