The four labs in The Greenhouse Gas Collection provides background and experience on how the concentration of carbon dioxide can impact the temperature of our atmosphere. Lab #1, Taking Global Warming 2-Liter-ally, emphasizes experimental design as students design and test experimental set-ups simulating various atmospheric conditions in two-liter bottles. The various designs are compared in the Apply and Synthesis questions.
Collecting and Analyzing Carbon Dioxide is Lab #2. Using baking soda and vinegar, a bicycle pump, car exhaust, and their own lungs they collect CO2 samples in balloons. After predicting the rankings of the samples from most → least CO2, the samples are analyzed by their ability to form acid in water.
The 3rd Lab, Too Much CO2?, reprises the experimental set-ups from Lab #1. This time, students vary CO2 concentration in their bottles. Comparison of bottle atmospheres to Earth atmosphere ends this lab.
Journey to Planet Zorkon. Lab #4, requires students to use information and techniques learned in prior labs. The task is to analyze a sample of Zorkonian atmosphere and determine if humans could survive on the planet Zorkon.
The first two activities are independent of each other. Too Much CO2 combines elements of each of the first two. Journey to Planet Zorkon is designed be used as a performance assessment.
The Greenhouse Gas Collection: 3 Integrated Labs and a Performance Assessment
by Dr. Chuck Downing
is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License