JoinAll Postsecondary resources
Interactive E-book
The Earth, Sun, and Moon Interactive E-book* uses diagrams, illustrative visual aids, and multimedia to help teachers, students, and other readers understand the interplay between Earth, Sun and Moon, and the characteristics that make Earth unique. I...
Interactive E-book
Flow of Matter and Energy in Ecosystems
The Flow of Matter and Energy in Ecosystems Interactive E-book* explores the systemic interplay and flow of matter and energy throughout ecosystems, populations, and organisms. Webs and pyramids are used to model and communicate about the transfer o...
Interactive E-book
The Electric and Magnetic Forces Interactive E-book* uses everyday events and items, like lightning, flashlights, batteries, compasses, and maglev trains, to examine electricity and magnetism. It provides detailed explanations of key science concepts...
Interactive E-book
Most of what goes on in the universe—from exploding stars and biological growth to the operation of machines and the motion of people—involves energy being transformed from one form into other forms....
Interactive E-book
The Coral Reef Ecosystems Interactive E-book* explores the structure and inhabitants of a living reef. From the anatomy and reproduction of corals, to their interdependence on other inhabitants of the reef, to the impact of disasters on a reef ecosys...
Interactive E-book
The Cell Structure and Function Interactive E-book* explores how cells, the basic building blocks of all organisms, function as systems of organelles and associated structures in a dynamic equilibrium between their internal and external environments....
Interactive E-book
The Universe Interactive E-book* explores how the organization of stars and galaxies comprise a universe and how research scientists use specialized instruments to collect data about stars and galaxies. This Enhanced E-book takes a closer look at our...
Interactive E-book
The Force and Motion Interactive E-book* explores the effects of forces on the motion of objects for both a conceptual and real-world understanding, using common, observable examples, like running, billiards, and motion of vehicles. Learn about conce...
Interactive E-book
The Solar System Interactive E-book* explores what we know about our solar system’s planets, moons, and other celestial bodies. This e-book focuses on asteroids, comets, meteorites, and each of the eight planets in our solar system, including their...
Interactive E-book
Interdependence of Life explores the interactions between organisms and the environments in which they live—Earth spheres, ecosystems, abiotic factors, biotic factors, populations characteristics, limiting factors, and carrying capacity—as well...