Text and illustration look at the element oxygen. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
Explores the essential element oxygen. Discusses where it is placed on the periodic table, a history of its discovery, how it mixes with other elements, and how it affects the world. Includes color photographs, a glossary, sources for further learning, and an index.
Gases are all around us, and they're an important part of living on our planet, but some facts about gases are shocking. This engaging book takes readers on a fun-filled journey of experiments and exploration.
Each breath we take demonstrates the marvel of the human lungs and respiratory system. This accessible book gives inquisitive readers an inside look at this essential bodily function.
What makes our hearts pump? How does blood circulate throughout our bodies? Curious readers will love this innovative look at the human heart and circulatory system.
