الوصف:
   
 
The DK Science Encyclopedia (Revised & Updated) 
by Susan McKeever & Martyn Foote (Editors) 
DK CHILDREN | 1998 | ISBN-10: 0789421909 | 452 Pages | scanned PDF | 118 MB 
https://www.amazon.com/Science-Encyclopedia-Revised-Susan-McKeever/dp/0789421909 
 
Thoroughly updated to cover new technological advances from the Internet to the Mars expedition, a profusely illustrated, colorful encyclopedia explains more than two thousand scientific subjects in a lively way geared to children. 
This encyclopedia can make anyone feel like a scientist! Not only does it have fascinating facts on everything from atoms to zephyrs, it also shows how scientists work--describing, measuring, and asking questions about the world. Filled with detailed, sharp illustrations and eye-catching photographs, this book could keep a curious kid (or adult!) occupied for weeks. The one- and two-page entries are thematically organized--much more useful than alphabetical entries for making connections and thinking about whole systems. Some of the best categories are "Reactions," "Materials," "Weather," "Space," and "How Living Things Work." But every entry has accurate, well-written text cross-indexed to related pages and to the "Fact Finder" section in the back, with charts, tables, and maps to use with each section. A glossary and index round out this thorough package. 
 
CONTENTS 
8-9 HOW TO USE THIS BOOK 
10 TIME CHARTS 
14-15 HOW SCIENTISTS WORK 
16 SAFETY CODE 
17 MATTER 
49 REACTIONS 
81 MATERIALS 
113 FORCES AND ENERGY 
145 ELECTRICITY AND MAGNETISM 
177 SOUND AND LIGHT 
209 EARTH 
241 WEATHER 
273 SPACE 
305 LIVING THINGS 
337 HOW LIVING THINGS WORK 
369 ECOLOGY 
401-425 FACT FINDER SECTION 
426-433 GLOSSARY 
434-445 INDEX 
446 ACKNOWLEDGMENTS |