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Surface Ozone

Student(s):Anna Willard
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Teacher:
Date Submitted: 02/27/2018
Surface Ozone

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This experiment focused on the question, how does the level of cloud cover affect the amount of ozone present? If there are more clouds in the sky, then there will be higher levels of bad ozone in the troposphere, because the clouds will prevent the ozone molecules from escaping higher into the atmosphere. The independent variable tested is the time. The dependent variables that will be measured are the ozone, clouds, current temperature, wind, air pressure, and relative humidity. The controls for this experiment are the time of the testing, and the materials- Zikua Ozone Testing Kit , a DIY Wind Direction Instrument, an Outside Instrument Shelter, (contains an alcohol thermometer and a Digital Dual Sensor Thermometer) (SN 89212), a Sling Psychrometer, Barometer, and a GLOBE Cloud Reading Chart. The ozone, clouds, current temperature, wind, air pressure, and relative humidity were all measured twice a week over a month and will resume in the spring. In conclusion, it was found that the more clouds there were the less ozone there was, and the less clouds there were the more ozone there was. In future experiments current temperature, wind, relative humidity, and air pressure would be added to see how they might affect the ozone reading.
Keywords: ozone, clouds, current temperature, wind, air pressure, relative humidity