Earth and space science readers

An introduction to the Earth for younger readers that discusses three basic parts to the Earth--the atmosphere, the hydrosphere, and the geosphere--and describes the importance of preserving the natural resources found on Earth, and other related topics. Includes laboratory activity.

Photographs and easy-to-follow text discusses the monumental contributions to the study of astronomy from Edwin Hubble, George Ellerly Hale, Lyman Spitzer, and others; and details a brief history of astronomy. Includes laboratory activity.