An essential dictionary for children grades 3-5, ages 8-11. More than 36,000 entries with new words and senses from technology and life sciences. Definitions enriched with nearly 1,300 quotes from classic and contemporary children's literature. Over 900 vibrant, colorful illustrations, photographs, and diagrams. Includes 250 word history paragraphs, 120 synonym paragraphs, and pronunciation paragraphs for every letter.