This useful encyclopedia will be useful to inquisitive children, because it will reveal the most interesting secrets of almost all fields of science. Readers will learn what an atom is made of, when the universe was born, why intelligent materials work\", how the human body is arranged, and many wonders that surround us With this book, learning will turn into a real pleasure, during which children will not only get acquainted with the most important achievements of science, but also gradually develop attention, memory and critical thinking.