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Discusses the three kinds of symbiosis--mutualism, commensalism, and parasitism--and describes examples of these relationships.
Explains the science of germs and emphasizes the importance of maintaining personal health.
A look at global warning.
Discusses the nature and effects of allergies, who gets them, how they develop, the different kinds, and how they are treated.
Introduction to ways that species have adapted over time to differing environments.
Explains photosynthesis, the process responsible for providing the material and energy for all living things, and discusses such related issues as respiration, the carbon cycle, acid rain, and the greenhouse effect.
Describes the structure and function of teeth and discusses how cavities form and how to prevent them.
"Examines the science behind hurricanes, including how and where tropical storms form, the various types of tropical storms, how scientists track hurricanes, and provides hurricane safety tips"--Provided by publisher.
"Explores 'yucky' foods from around the world, including frog legs, grubs, scrapple, maggot cheese, and more"--Provided by publisher.
Text, diagrams, and sidebars inform readers about smoking, including what cigarettes are, the harmful effects of smoking, and ways people can quit.