PPM: The Impact of Trace Elements in the Environment
Alexandra Moore, Paleontological Research Institution

This resource from the Paleontological Research Institute includes a worksheet, videos, and hands on experiments to demonstrate how absorption, reflection, and transmission of light relates to the amount of carbon dioxide in the atmosphere, and how small changes in that amount (e.g., parts per million or ppm) can have large impacts.
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Consider using the virtual dataset if it is not feasible to obtain the listed materials. The authors provide all the information needed to support anyone who would like to implement this activity. This activity can be performed as a demonstration if a class set of materials is not available. The authors also provide extensive content that should support the user in deciding how to integrate this activity into their curriculums. The variety of learning tools will likely appeal to a wide range of learning styles. A teacher and student guide are included.