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9/13/1314th Day of School
Learning Goal (7.E.1.1): I will be able to describe the structure of Earth’s atmosphere.
Due Today: Title, composition, properties & structure Powerpoint slides
Evening Assignment: Have a great weekend!
Do Now
In your composition notebook, copy and answer the following…
Give one example of the events that occur in each temperature layer:- Troposphere- Stratosphere- Mesosphere- Thermosphere
McDougall textbook, p. viii
Do Now
How’d you do?
Give one example of the events that occur in each temperature layer:- Troposphere: our weather, life- Stratosphere: ozone layer blocks UV
Mesosphere: meteors burn up- Thermosphere: auroras, space shuttle
Thermosphere• Name means “heat”• Altitude range: 56-600 miles• Temperature range: -120F to 3600F!• Heat source: sun (from above)• Special features: auroras, space shuttle
Mesosphere• Name means “middle”• Altitude range: 31-56 miles• Temperature range: 32F to -120F• Heat source: stratosphere (from below)• Special features: meteors burn up
Stratosphere• Name means “spreading out”• Altitude range: 6-31 miles• Temperature range: -76F to 32F• Heat source: sun (from above)• Special features: ozone layer blocks UV
Troposphere• Name means “turning”• Altitude range: 0-6 miles• Temperature range: 59F to -76F• Heat source: ground (from below)• Special features: weather, life
Source: McDougall p. A20-21 and
Minor Assessment
Assignment: Earth’s Atmosphere PowerpointYou will make a Powerpoint presentation about Earth’s atmosphere. You may use information and pictures from class, the textbook, other books, and the Internet but you MUST cite your sources (ex. title, page, web address, etc). Include text in your own words explaining any images you use. Your Powerpoint should have the following slides. Final Powerpoint is due Friday 9/13/13.
• Title slide with title, your name, period, date• Slide defining atmosphere• Slide(s) about the composition of Earth’s atmosphere
- Gases- Particulates- Energy
• Slide(s) about the properties of Earth’s atmosphere- Air has substance- Air temperature decreases as altitude increases- Air pressure decreases as altitude increases- Air density decreases as altitude increases- Protects & supports life
• Slide(s) about the structure of Earth’s atmosphere- Thermosphere- Mesosphere- Stratosphere- Troposphere
Minor Assessment Rubric
Turn in assignment
• Be sure you have saved your PowerPoint so that I will recognize the owner!
• For example: eagleg_atmosphere_ppt
• Submit assignment to the dropbox on Haiku.• Don’t forget to submit your assessment rubric with
your self-evaluation also.
Evening Assignment
Have a great weekend!