An introduction to organisms, covering what they are, whatthey need, how they shape Earth, and more. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, qui supplementary resources.
Explores the scientific history and future of living organisms. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
Collects episodes from the television series "Planet Earth," which features high definition filming of the natural world; and episodes from the series "Life," which features micro and macro photography that captures the adaptability and survival tactics of plants and animals.
Examines the variation in life-spans of both domestic and wild animals, ranging from one day to more than a century. Discusses ways of estimating age and theories on why life-spans vary and what causes aging.
Living and nonliving things are all around us. Five easy-to-read chapters explain the science behind living and nonliving things, as well as their real-world applications.
Explores the qualities that make the Earth a unique planet, focusing on its ability to support life and explaining the factors that allow life to exist, such as the planet's composition and its position within the solar system; includes an activity that teaches students about the Earth's water cycle, and a visit to Biosphere 2 in Arizona.
