Title: Layers of the Atmosphere Online Activity Name _______________________________ Hr ____ http://www.glencoe.com/sites/common_assets/science/virtual_labs/ES14/ES14.html Problem: How does temperature, air pressure, and the density of the air change among the layers of the atmosphere? Hypothesis: Temp.-_____________________________________________________________________________________________ Press.-_____________________________________________________________________________________________ Density-____________________________________________________________________________________________ Objective: To describe (click here to learn) the structure of the Earth’s atmosphere and the phenomena that occur in each layer. Procedures: After formulating a hypothesis…. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Data Table: Launch # Click here or the website in the title above to boot up the Layers of the Atmosphere Interactive activity. Read aloud about the atm. Layers scrolling through the online information on the left side of the screen. Record the atmospheric data (density, pressure, and temp.) for sea level, 0 km, in the data table below. Drag the red slider ( ) up and choose the next altitude listed in the data table. Click the Launch button to send the balloon or rocket up to collect atmospheric data. Record the new atmospheric data from the bottom of the screen into the data table. If the Show Phenomenon button becomes enabled, click to learn what else occurs at that level. Repeat the exploration for each of the ten other altitudes. Troposphere = 0-10 km Then Graph the data. The first two data points have been graphed. Be prepared to go off the scale. Stratosphere = 11-50 km Complete the Analysis and Conclusion questions. Mesosphere = 51-80 km Thermoshpere = 81-500 km Altitude in Km 1 0 2 5 3 10 4 25 5 50 6 60 7 75 8 100 9 150 10 200 11 400 Density as a % of sea level Pressure in Pa. Temp. In 0C What atm. layer is at this altitude? Phenomena found present in this layer Graph: Altitude v. Pressure Altitude v. Temperature 600 600 Alt. (km) Alt. (km) 80 80 50 50 25 25 16 16 10 10 5 5 Sea level=0 0=sea level -100 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 0.000000001 .00000001 .0000001 .000001 .00001 .0001 .001 .01 0.1 1.0 10 100 1000 10000 100000 Pressure ( Pa.) Temp. ( 0C ) Analysis and Conclusions: 1. Which layer of the atmosphere do we live in? ________________________ What meteorological phenomena can be found in this layer? ________________________________________________________ 2. If a rocket were launched to a height of 210 km, which layer of the atmosphere would it rise to? ____________________________ What meteorological phenomena can be found in this layer? ________________________________________________________ 3. Where is the ozone layer and what is ozone? In the ________________ It is___________________________________________ 4. Why is the ozone layer (click here) important to life on Earth? ___________________________________________________________ 5. Describe the relationship between air density and air pressure changes throughout the atmosphere. ________________________ __________________________________________________________________________________________________________ 6. Describe the pattern of air temperature change with altitude. _______________________________________________________ __________________________________________________________________________________________________________ 7. Why does the temperature change (click here) among the layers of the atmosphere? ________________________________________ __________________________________________________________________________________________________________