The children's encyclopedia "Chemistry" gives a complete and accessible presentation of useful information about substances, elements and chemical compounds, as well as a description of experiments, biographies of scientists and a large number of historical facts and scientific discoveries. The complex issues of this science are revealed vividly and figuratively, many interesting observations, colorful illustrations and drawings are given. The book will help students independently understand various issues of general, organic and inorganic chemistry, teach how to compare liquid and solid substances, and identify significant features of each element of the periodic table.