As a homework assignment, students gather information on their family car(s) and use a Web-based calculator to help them evaluate the potential for reducing CO2 emissions by choosing to use automobiles with higher fuel efficiency. As a class, students evaluate the potential for their community to reduce greenhouse gas emissions though the use of more fuel-efficient cars.
In this lab, students will infer a potential for increasing levels of atmospheric carbon dioxide leading to global warming by contrasting the temperature rise in a CO2 rich atmosphere to that of normal air when both environments are exposed to a bright light in a controlled experiment.
Through a reading, demonstration stations, and completion of a puzzle, students will recognize how respiration and photosynthesis move carbon through the earth system, how fossil fuels were formed, and how human activities have altered this movement on a global scale.
Over one week of homework activity, students complete two transportation surveys: the Give Your Car A Break - Trip Log and a Family Transportation Survey. At the end of the week students analyze their results to determine the potential for reducing greenhouse gas emissions through choosing alternative modes of travel to the single passenger car.
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