Explores the physical structure of the Earth's landforms, including what they are, how they look, how they were created and change over time, and major geological events associated with each.

This second edition, a continuation of the original set, contains 100 entries - 70 brand new entries plus 30 revised and updated from the first edition. Covering bands and musicians from the 1990s to today, this set provides in-depth examinations of popular music styles and performers; sidebars featuring related material; discographies of artists' main works; an appendix of award winners; and more. The set also features general, subject and genre indexes cumulative across both editions.

Indexes the volumes (Almanac, Biographies, and Primary Sources) in the American Civil War Reference Library.

"U- X- L(R) Encyclopedia of Water Science "explores water science and issues from an international perspective. Topics covered include lakes and streams, oceans, aquatic animals, weather and climate, glaciers, wetlands, ecology, hydropower, commercial fishing, acid rain, recreation, pollution, economics, water conservation, international water law, global warming and much more. Numerous sidebars highlight significant facts and opinions, provide biographies, explain allusions and describe water-related activities. Provided in each entry are definitions for scientific terms and sources for further research. A general glossary, an index, more than 150 black-and-white photographs, and a different set of color photo inserts are included in each volume.

Budding scientists and those entering the fascinating world of science for fun or study will find both intrigue and inspiration in these three volumes. The original 3-vol. set presented detailed biographies of 150 women and men whose theories, discoveries and inventions revolutionized science and society. From Louis Pasteur to Bill Gates and Elijah McCoy to Margaret Mead, "Scientists" explores the pioneers and their innovations that students most want to learn about. Vol. 4 adds 33 additional biographies (Joy Adamson, Carl Sagan and more); vol. 5 adds 34 more (Hippocrates and Fred Hoyle, among others); vol. 6 adds 34 more (including Howard Aiken, Ptolemy, and Nancy Wexler).

Scientists from around the world and from the Industrial Revolution to the present are featured in fields like astronomy, ecology, oceanography, physics and more. In "Scientists," students will find: Scientist biographies, each focusing on the scientist's early life, formative experiences and inspirations -- details that keep students reading "Impact" boxes that draw out important information and sum up why each scientist's work is indeed revolutionary Sidebar boxes that highlight individuals who influenced the work of the featured scientist or who conducted similar research, as well as related information of special interest to students Sources for further reading so students know where to delve even deeper Black-and-white portraits and additional photographs that give students a better understanding of the people and inventions discussed

Each volume begins with a listing of scientists by field, ranging from archaeology to zoology; a timeline of major scientific breakthroughs; and a glossary of scientificterms used in the text. Volumes conclude with a cumulative subject index so that students can easily find the people, inventions and theories discussed throughout "Scientists."