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20 October 2020 Understanding the Unseen: CO2's Connections in Life
Rick Martin, Eun Ju Lim
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Abstract

Carbon dioxide (CO2) is a colorless, odorless gas that makes up a small fraction of Earth's atmosphere. Despite its inconspicuous nature, CO2 plays an integral part in sustaining life on Earth, a part that is largely unknown or underappreciated by the general public. We present a set of activities designed to help students overcome the most common misunderstandings about CO2, from its sheer existence as a mass-containing molecule to its complementary roles in photosynthesis and respiration. Through these activities, students will be able to apply their knowledge to real-world phenomena, including weight loss and global warming.

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Rick Martin and Eun Ju Lim "Understanding the Unseen: CO2's Connections in Life," The American Biology Teacher 82(7), 470-476, (20 October 2020). https://doi.org/10.1525/abt.2020.82.7.470
Published: 20 October 2020
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KEYWORDS
carbon dioxide
Cellular respiration
fuel combustion
global warming
photosynthesis
weight loss
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