Examines the Earth's changing physical environment, especially its rivers and valleys and coasts and coastlines with an emphasis on the impact of earthquakes, volcanoes, and glaciers.
Describes space shuttles used for exploration as well as the development of Salyut and Skylab, Mir, and the International Space Station orbiting the Earth.
An illustrated introduction to the universe and how it works, and includes sixty hands-on activities to reinforce the scientific principles and theories.