With this engaging look at essential Earth science concepts, your readers will discover the complicated relationship between humans and the air that exists all around us. While air contains oxygen allowing us to breathe, it also contains carbon dioxide and harmful chemicals, which humans put into the atmosphere as air pollution. Air sustains life, but it can also be damaging in the form of deadly weather events. The informative narrative uses simple language to help readers understand this essential curriculum topic. Useful diagrams, detailed graphic organizers, fact boxes, and vibrant, full-color photographs add to the learning experience.