An introduction to glaciers that discusses how they form, different types, what causes them to move, landforms created by movement, and how people are working to prevent them from melting by limiting global warming.
An introduction to rocks that discusses what they are made of, different types and how they are formed, the rock cycle, how they are used by people, and mining.
Introduces galaxies, describing how they form and change over time, their different sizes, shapes, and distance from Earth, and the major features of the Milky Way.
Provides information about the history of NASA and its early missions and describes the space stations built by NASA where astronauts can live and work. Depicts the aircraft that is used for exploring space and study our solar system and discusses future plans for space exploration. Includes a glossary, an index, and color photos.