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Today

Today. Hand in any work needed. Check the list, if you owe something. Get out a small piece of paper, PUT YOUR NAME ON IT. When bell rings the quiz will start and you will have 1 minute per question to answer. Question 1. What are the four layers of the atmosphere from Earths surface?.

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Today

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  1. Today • Hand in any work needed. • Check the list, if you owe something. • Get out a small piece of paper, PUT YOUR NAME ON IT. • When bell rings the quiz will start and you will have 1 minute per question to answer

  2. Question 1 • What are the four layers of the atmosphere from Earths surface?

  3. Question 2 • What is the altitude of the stratopause?

  4. Question 3 • What is the temperature at the mesopause?

  5. Question 4 • What is the temperature in oC for 140oF?

  6. Question 5 • What is the Density if, a 2cm cube had a mass of 24g?

  7. Answers • What are the four layers of the earth from the surface? • Troposphere, Stratosphere, Mesosphere, Thermosphere • What is the altitude of the stratopause? • 50 km • What is the temperature at the mesopause? • -90oC • What is the temperature in oC for 140oF • 60oC • What is the Density if, a 2cm cube had a mass of 24g? • 3 g/cm3

  8. Moisture in the Atmosphere Beaker demo

  9. Humidity • This is how much moisture is in the air. • Saturated air is air that is full of water. • Dew point is the point that air must be cooled to for a cloud to form.

  10. Humidity • How do we measure humidity? • Sling Psychrometer • Dry Bulb- Air temperature • Wet Bulb – temperature of saturated air.

  11. Write this down! • To find the RH you need the dry bulb (temperature) in oC • Then find the difference between Dry Bulb and Wet Bulb. • Look up DB • Look up Difference • Where they intersect is the Rel Humidity.

  12. What is the Humidity if: • DB=10oC & WB=10oC • 100% • DB=20oC & WB=7oC • 5% • DB=0oC & WB=-1oC • 81% • DB=-10oC & WB=-12oC • 33%

  13. Dew Point • This is the point where water vapor condenses to form clouds. • How do we measure it? • Same way we did with the humidity. • How do we find it? • Same way as humidity but with different chart.

  14. ESRT Practice • To find the DP you need the dry bulb (temperature) in oC • Then find the difference between Dry Bulb and Wet Bulb. • Look up DB • Look up Difference • Where they intersect is the Dew Point. Dry Bulb ALWAYS greater then Wet Bulb

  15. Dry Bulb ALWAYS greater then Wet Bulb Practice • What is the Dew Pt if DB=0oC & WB= -4oC? -15oC • What is the Humidity if DB=0oC & WB=4oC? 28% • What is the WB if DB=4oC & DP= -11oC? -1oC • What is the Dew P if the DB=8oC & Hum=39%? -5oC

  16. The Water Cycle • The process of water flowing to an from the oceans. Draw this

  17. Important parts of Water Cycle • Evaporation • Liquid water changing to gas • Condensation • Gas vapor to liquid water • Precipitation • Water falling to the ground • Infiltration • Water being absorbed • Run off • Water flowing off of surface

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