Contains facts about the earth's features such as the mountains, oceans, natural resources, volcanoes, highest waterfalls, largest deserts, and deepest lakes.

Lists facts about the prehistoric world from the earliest forms of life on earth to the invention of writing.

Facts about the countries of the world. Includes tables, comparisons, and illustrations.

An illustrated encyclopedia for children which covers such topics as science, history, technology, geography, and world records.

You'll never guess how monkeys clean their teeth, which baby animal is bigger than its parents or just how high bumblebees can fly! All is revealed in this delightful information book, filled with quirky and surprising things to know about all kinds of animals.

Contains hundreds of facinating facts about the animal world.

Discusses changes that adolescents undergo during puberty, chiefly the physical changes.