Publisher Description

Entries with definitions of basic scientific terms are accompanied by illustrations, "Did You Know" sidebars, and explanatory notes.

In an updated edition covering a wide variety of scientific fields, more than four thousand entries with definitions of basic scientific terms are accompanied by illustrations, "Did You Know" sidebars, and explanatory notes.

A brand-new, fully revised edition of this outstanding resource for students in grades 6-10 includes hundreds of new words, abundant example sentences, lively feature notes and an all-new full-color art program.

The American Heritage(R) Children"s Science Dictionary introduces students in grades 4 to 6 to the language and ideas of science. Clear definitions, stunning color art, and an array of special notes and tables cover the full range of scientific subjects, from earth science, computers, weather, and outer space to basic biology, chemistry, physics, medicine, and mathematics. Key figures in the sciences are showcased in biographical entries and sidebars. "Did You Know?" notes present amazing facts on topics from earthworms to gravity to tornadoes. Delightful to browse in, the book uses a simple cross-referencing system that makes it easy to find and compare information in each subject area. Together with expert science consultants, the editors of the American Heritage(R) dictionaries have produced the reference work that parents and educators have been waiting for -- one that is sure to spark kids" natural curiosity and inspire a long-lasting interest in science. - More than 2,600 clear, easy-to-read definitions in all science topics - 350 full-color photographs and drawings - More than 150 biographies of notable scientists - More than 100 notes on key scientific concepts - In-depth graphic treatment of selected topics - Easy-to-follow tables and charts, including Planets of the Solar System and Rock Types - Simple cross-referencing system

For the first time, the editors of the acclaimed American Heritage(R) Dictionary have applied their efforts to word usage as its own subject. The result is this practical guide that includes chapters on grammar, style, diction, gender, social groups, pronunciation, word formation, science terms, and a subject and a word index.

The American Heritage® Student Science Dictionary, Second Edition, for students in grades 7 and up (ages 12 and up), provides comprehensive coverage of all the sciences. The dictionary includes more than 4,500 entry words in A–Z format, 450 full-color photographs and drawings, and over 150 in-depth notes. Definitions are written in easy-to-understand language. Additional features include full-page treatment of complex topics such as photosynthesis, and several tables and charts, including the periodic table and a chart of geologic time. More than 250 new entries and senses have been added to this brand-new edition, including cloud computing, genetically modified organism, and the recently named elements flerovium and livermorium.