Learn the difference between a plant and a mushroom, peed inside a tropical cyclone, or see all of the parts of a castle with this indispensable new reference.

New title! A portable visual inventory of today's world incorporating dictionary-scale definitions. 2,600 highly detailed illustrations (many in full color) are

Incorporates more than 20,000 words and their definitions, and 6,000 full-color illustrations, plus seventeen chapters on a wide variety of subjects.

A dictionary for fourth, fifth, and sixth graders giving definition, part of speech, and pronunciation guide for over 18,000 words.

"Provides definitions, pronunciations, etymologies, part of speech designations, and other appropriate information. Intended for use by students in grades nine