"Glacier National Park runs from Montana to the Canadian border. Learn how to prepare for hiking the trails of this national park and about the wildlife that lives there"--.
Photographs and illustrations help explain the theory of relativity, discussing the relationships between time, space, and light and describing how scientists use the theories of relativity to study the universe.
Provides an overview of how atoms are split, describing the processes used, the reasons scientists need to split an atom, and the process of creating atomic energy.
An introduction to black holes that explains how stars are formed and destroyed and how the life cycle of a star influences other bodies in space and dispels common myths about black holes.
