The book, Children Encyclopedia - ChemistryThe World of Knowledge is one among the 12 books of the series, Children's Encyclopedia - The World of Knowledge. The subject matter contains a precise, coloured and diagrammatic description of Matter and its Properties, Mass, Volume & Density, Atoms, Molecules & Elements, Compounds & Mixtures, Chemical Reactions and Physical Changes among Solids, Liquids and Gases, etc. Hence dear readers, grab the book as soon as you can, for it's a treasure trove of knowledge and information, which you can use it as a reference material for academic studies or extra curricular activities. Happy Reading and Learning!