OZONE. What is the Ozone  The Ozone Layer | National Geographic Education Video The Ozone Layer | National Geographic Education Video  Colorless gas

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  • What is the OzoneThe Ozone Layer | National Geographic Education VideoColorless gasO3: Three oxygen atomsThe oxygen we breath only has two oxygen atoms ( O2)Located in the stratosphereIs a greenhouse gas and does help govern Earths climate

  • Ozone QuestionsHow is a molecule of ozone different from a molecule of atmospheric oxygen?A. Atmospheric oxygen has one more oxygen atom than ozoneB. Atmospheric oxygen has one less oxygen atom than ozone.C. Oxygen and ozone are the same; they are found at different layers of the atmosphereD. Oxygen is produced by plants; ozone is produced when oxygen combines with CO2

  • Ozone affects in the lower and upper atmosphereCause rubber to crackHarmful to plantsDamages lung tissuesConsider pollutionAbsorbs harmful ultraviolet radiation from the sunUV-BProtects living organisms LowerUpperhttp://ozonewatch.gsfc.nasa.gov/, April 6, 2011

  • Ozone QuestionsWhere is ozone considered a pollutant?A. in the upper atmosphere where it blocks the suns raysB. in the mid-atmosphere where it prevents cloud formation.C. in the lower atmosphere where it impairs normal lung function.D. it is a pollutant everywhere it is found.

  • Ozone QuestionWhat does the ozone layer protect living things from?A. bad weatherB. ultraviolet raysC. excessive heatD. meteors and meteorites

  • Ozone DepletionOzone HoleGreatest effects are seen at Earths polesAntarctic: ozone hole forms from September to NovemberArtic: ozone hole forms from March to MayNot as bad as Antarctic ozone hole because the Artic doesnt experience as cold of temperatures as Antarctic. The largest ozone hole ever observed occurred on 24 September 2006. Chemical reactions involving chlorine, bromine, nitrogen, and hydrogen break down the ozone layer. Also CFCs (chlorofluorocarbons) have contributed to the break down.In the winter time at each pole the chlorine and bromine will gather together, because of the lower temperatures and less sunlight. Then in the spring and summer months the sunlight will increase and start the change reaction of the Cl and Br breaking down the ozone layer creating a hole.Teachers' Domain: Ozone Holehttp://video.nationalgeographic.com/video/player/news/environment-news/antarctica-ozone-vin.html

    http://ozonewatch.gsfc.nasa.gov/, April 6, 2011http://www.ozonelayer.noaa.gov/science/ozhole.htm, April 7, 2011

  • Ozone QuestionsWhat health issue associated with the ozone hole?A. difficult breathingB. feverC. skin cancerD. nagging cough

  • Ozone QuestionLife on land did not develop on Earth in abundance until the suns radiation was reduced. When did this happen?A. when human beings built machines that burn fossil fuels.B. when ozone had been absorbed out of the upper atmosphereC. when plants had an opportunity to live with animalsD. when enough ozone had built up in the upper atmosphere